{"title":"Architectural White: Platinum \u0026 White Gold","description":"\u003cp\u003eDiscover the quiet radiance of authentic antique platinum and vintage white gold from the Victorian through Retro eras. Crafted by hand to capture candlelight, these rare heirlooms carry decades of history and unmistakable patina.\u003c\/p\u003e","products":[{"product_id":"antique-art-deco-sapphire-diamond-platinum-ring","title":"Antique, Bishop and Bishop, Art Deco, 10% Irid Platinum Natural Blue Sapphire \u0026 Diamond Ring","description":"\u003cp\u003eA true survivor of the \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\" rel=\"noopener\" target=\"_blank\"\u003eArt Deco\u003c\/a\u003e era, this ring carries the unmistakable presence of a \u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"\u003e\u003cstrong\u003ehand-forged piece, not mass-produced, \u003c\/strong\u003eby the well-known Newark jewelry manufacturer Bishop \u0026amp; Bishop\u003c\/span\u003e—a rare example of craftsmanship from a time when jewelry was built with intention, not efficiency.  There’s an immediate sense of substance in hand—dense, solid, and quietly powerful—reflecting the superior materials and methods of the 1920s.\u003c\/p\u003e\n\u003cp\u003eAt its core is a vivid sapphire, elevated within a striking architectural “bridge” gallery. The design rises with purpose, echoing the bold geometry of the era’s skyline, as if the stone itself is suspended at the center of a miniature structure. Every angle reveals thoughtful hand-finishing—details that simply don’t exist in modern cast pieces.\u003c\/p\u003e\n\u003cp\u003eThis isn’t just vintage. It’s a piece of history you can feel the moment you pick it up.\u003c\/p\u003e\n\u003ch3\u003eSPECIFICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 10% Iridium Platinum (Hallmarked)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.8 Grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Stone:\u003c\/strong\u003e Natural Blue Sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Vivid Royal Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccents:\u003c\/strong\u003e 6 Original Single-Cut Diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Circa 1925\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer: \u003c\/strong\u003eBishop and Bishop- Authentic Bishop \u0026amp; Bishop Art Deco rings are increasingly difficult to find. This New Jersey-based maker, active in the early 20th century (circa 1910–1950s), was known for producing finely crafted pieces in gold and platinum, with a focus on quality construction and enduring design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDETAILS\u003c\/h3\u003e\n\u003cp\u003eThis is an authentic Art Deco survivor featuring a hand-finished \"Bridge\" filigree gallery.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Stone:\u003c\/strong\u003e The sapphire shows natural internal inclusions (silk and feathers) under magnification, confirming earth-mined origin. The color remains a strong blue in all lighting profiles. At high magnification, the stone could be unheated, but this is not confirmed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Metal:\u003c\/strong\u003e Solid 10% Iridium Platinum with era-correct surface patina. The interior shank contains an original manufacturing die-strike irregularity from the forging process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Hallmarks:\u003c\/strong\u003e Stamped \"10% IRID PLAT\". Maker's marks are present but show significant wear and are currently illegible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCONDITION \u0026amp; AUTHENTICITY\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis is an authentic antique piece, approximately 100 years old. It has been preserved in its original state, showcasing an honest patina and the unique character of hand-fabricated jewelry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote on Authenticity:\u003c\/strong\u003e The interior shank shows a unique \u003cstrong\u003eperiod-correct miss-stamp\u003c\/strong\u003e from the original jeweler’s punch. This double-strike is a common characteristic of hand-finished early 20th-century jewelry and serves as a \"fingerprint\" of its authentic, manual creation.\u003c\/li\u003e\n\u003cli\u003eThe head shows evidence of a historic repair, likely completed using a different metal alloy. The repair is only visible under certain lighting conditions and close examination, and does not impact the ring's structural integrity or wearability.\u003c\/li\u003e\n\u003cli\u003eThe shank shows some thinning.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":51999583011127,"sku":null,"price":1150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Bishop-and-Bishop-Sapphire-and-Diamond-Ring.jpg?v=1787224293"},{"product_id":"antique-belais-diamond-ring","title":"Antique Belais 18K White Gold Old European Cut Diamond Filigree Ring","description":"\u003cp\u003eThis is a true Belais original—an early white gold ring from the dawn of the Art Deco era, when design began to move toward structure, balance, and precision. The piece is defined by its composed, architectural presence, centered around an Old European cut diamond set within a clean octagonal frame.\u003c\/p\u003e\n\u003cp\u003eThere’s a quiet confidence to this ring. The diamond draws you in rather than overwhelms, its broad, hand-cut facets producing a softer, more dimensional light. It’s not just sparkle—it’s depth—subtle, layered, and constantly shifting as it moves.\u003c\/p\u003e\n\u003cp\u003eThe architecture is where this ring sets itself apart. Intricate hand-cut filigree flows through the shoulders and gallery, lightening the structure while adding detail at every angle. This is craftsmanship that simply doesn’t exist in modern cast pieces.\u003c\/p\u003e\n\u003cp\u003eThe faint “B” preceding the clearly struck LAIS 18K hallmark confirms this as a genuine Belais Brothers ring—an original example of early American white gold at a time when the material itself was still an innovation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAt a Glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAuthentic Belais Brothers ring — LAIS 18K hallmark \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCirca 1915–1925, \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\"\u003eOld European cut diamond\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eApprox. 5 mm diameter in setting\u003c\/li\u003e\n\u003cli\u003e18K white gold\u003c\/li\u003e\n\u003cli\u003eOctagonal bezel with hand-cut filigree  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker:\u003c\/strong\u003e Belais Brothers (Hallmarked LAIS, faint “B” prefix)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 18K White Gold (Stamped)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Circa 1915–1925\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Old European Cut Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Size:\u003c\/strong\u003e ~5 mm diameter (in setting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Carat Weight:\u003c\/strong\u003e ~0.35–0.50 ct (approximate)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Octagonal bezel with filigree gallery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.7g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an authentic Belais Brothers ring, showcasing the refined craftsmanship and early white gold innovation the maker was known for.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Diamond:\u003c\/strong\u003e The center stone exhibits the defining characteristics of an Old European cut, including a visible open culet, higher crown, and broad facet pattern typical of hand-cut diamonds from the early 20th century. The light return is softer and more dimensional than modern cuts, offering depth rather than sharp brilliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Setting:\u003c\/strong\u003e The diamond is framed within a structured octagonal bezel, giving the ring a balanced architectural presence. This design reflects the transition from the flowing forms of the Edwardian era into the more geometric influence of early Art Deco.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Shoulders:\u003c\/strong\u003e The shoulder design features an elongated, organic pattern that can be interpreted as a subtle wheat motif—symbolically associated with prosperity and abundance. This type of naturalistic detailing is occasionally seen in transitional pieces from the late Edwardian to early Art Deco period.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Craftsmanship:\u003c\/strong\u003e Intricate hand-cut filigree runs throughout the gallery and shoulders, allowing light to pass through the setting while maintaining strength. Slight irregularities in the piercings are consistent with hand fabrication and are a hallmark of authentic antique construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Hallmark:\u003c\/strong\u003e The stamp “LAIS 18K,” along with a faint preceding “B,” is consistent with Belais Brothers markings. This serves as a key indicator of authenticity and adds to the ring’s collector appeal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cbr\u003eVery good antique condition. Light surface wear consistent with age. Filigree remains intact. Diamond is secure. No major structural issues observed.\u003c\/p\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52021111685431,"sku":null,"price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/18K_Art_Deco_Belais_Ring.jpg?v=1787224504"},{"product_id":"art-deco-sapphire-ring-18k-white-gold-filigree","title":"Vintage Art Deco 18K White Gold Blue Sapphire Solitaire Filigree Ring","description":"\u003cp\u003eA true Art Deco original, this early white gold ring reflects the shift toward balance, precision, and architectural form that defined the period. Its presence is refined and controlled, centered on a deep blue sapphire set within a raised prong mount.\u003c\/p\u003e\n\u003cp\u003eThe sapphire draws the eye without excess. Its faceting produces a darker, tonal light—subtle rather than sharp—offering depth and quiet movement as it turns.\u003c\/p\u003e\n\u003cp\u003eThe structure is what distinguishes the piece. Open filigree runs through the gallery and shoulders, reducing visual weight while preserving strength. Every element is considered, resulting in a ring that feels both delicate and composed.\u003c\/p\u003e\n\u003cp\u003eUnbranded, yet entirely consistent with American Art Deco construction in both material and form.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cp\u003eArt Deco sapphire ring — 18K white gold\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCirca 1920s–1930s, \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNatural, round blue sapphire\u003c\/li\u003e\n\u003cli\u003eApprox. 4.5 mm\u003c\/li\u003e\n\u003cli\u003e18K white gold\u003c\/li\u003e\n\u003cli\u003eOpen filigree gallery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker:\u003c\/strong\u003e Unknown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 18K White Gold (tested)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Circa 1920s–1930s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Blue Sapphire (Round Cut)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Size:\u003c\/strong\u003e ~4.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Carat Weight:\u003c\/strong\u003e ~0.28 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Raised Prong Solitaire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 5.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.92 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eAn authentic Art Deco ring defined by proportion, restraint, and structural clarity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Stone\u003c\/strong\u003e\u003cbr\u003eA deep bluetone with darker saturation and natural tonal variation. Light is absorbed and released gradually, creating depth rather than surface brilliance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Setting\u003c\/strong\u003e\u003cbr\u003eA raised prong mount positions the stone intentionally, allowing light to interact with it while maintaining a controlled profile.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Shoulders\u003c\/strong\u003e\u003cbr\u003eOpen filigree and fine engraving taper into a slender band, introducing lightness without compromising structure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Craftsmanship\u003c\/strong\u003e\u003cbr\u003eHand-finished construction, with precision and detailing that reflect early 20th-century fabrication methods rather than modern casting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Hallmark\u003c\/strong\u003e\u003cbr\u003eUnbranded. Metal tests as 18K white gold. Construction and materials are consistent with the period.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eGood vintage condition with age-appropriate wear consistent with decades of careful use. The sapphire shows minor facet edge chipping and abrasions visible under magnification, including localized wear near the lower portion of the stone. These characteristics are not readily noticeable during normal wear and do not diminish the ring's overall visual presence.\u003c\/p\u003e\n\u003cp\u003eThe mounting shows scattered surface wear, including a more visible scratch along one side of the engraved shoulder. The scratch is apparent under close inspection but blends naturally into the piece's overall character when worn.\u003c\/p\u003e\n\u003cp\u003eThe interior of the shank shows small historic drill marks, likely associated with prior jeweler testing or evaluation. The marks are shallow and do not affect the ring's structural integrity or wearability.\u003c\/p\u003e\n\u003cp\u003eThe original openwork mounting and engraved details remain intact, and the ring continues to present beautifully on hand.\u003c\/p\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52066578432311,"sku":null,"price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Moody_Lifestyle_Shot_Sapphire_Filigree_Ring.png?v=1778754253"},{"product_id":"vintage-diamond-star-bezel-ring-14k-white-gold","title":"Late Art Deco \/ Early Retro 14K White Gold Diamond Star Bezel Engraved Solitaire Ring","description":"\u003cp\u003eThis is a true vintage original—an early 14K white gold ring from the \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003elate Art Deco\u003c\/a\u003e to early Retro transition, likely dating to the late 1930s to early 1940s. It reflects a moment when design began softening from strict geometry into more refined, wearable forms. The piece is defined by its balanced, intentional presence, centered on an old European-cut diamond set within a distinctive star-shaped bezel.\u003c\/p\u003e\n\u003cp\u003eThere’s a quiet confidence to this ring. The diamond draws you in rather than overwhelms, its compact proportions producing a crisp, controlled brilliance. It’s not just sparkle—it’s precision—clean, focused, and refined as it catches the light.\u003c\/p\u003e\n\u003cp\u003eThe architecture is what sets this ring apart. The star-shaped bezel introduces a structured, geometric frame that gives the stone presence beyond its size, while fine hand engraving along the band adds subtle texture and depth. The result is a piece that sits naturally between two design periods—structured, but understated.\u003c\/p\u003e\n\u003cp\u003eThe ring shows characteristics consistent with die-struck construction and hand finishing, contributing to its crisp detail and durable form—hallmarks of higher-quality production from the period.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAuthentic late Deco \/ early Retro diamond solitaire — star bezel with engraved band\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCirca late 1930s–early 1940s\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\" target=\"_blank\" rel=\"noopener\"\u003eOld European Cut Diamond\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eApprox. 3.5 mm center stone \u003c\/li\u003e\n\u003cli\u003e14K White Gold \u003c\/li\u003e\n\u003cli\u003eStar-shaped bezel with hand engraving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker:\u003c\/strong\u003e Unknown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 14K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Circa late 1930s–early 1940s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Old European Cut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Size:\u003c\/strong\u003e Approx. 3.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Carat Weight:\u003c\/strong\u003e Approx. 0.15–0.20 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Star Bezel \/ Solitaire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 7.75\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.9 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThis is an authentic vintage solitaire, reflecting the transition between late Art Deco precision and more wearable early Retro design.\u003c\/p\u003e\n\u003ch3\u003eThe Diamond:\u003c\/h3\u003e\n\u003cp\u003eThe diamond is an Old European Cut that presents a bright, lively appearance with a clean, balanced sparkle. Its size favors refinement over scale, offering a subtle but confident presence.\u003c\/p\u003e\n\u003ch3\u003eThe Setting:\u003c\/h3\u003e\n\u003cp\u003eThe star-shaped bezel is the defining feature—geometric and intentional, enhancing the diamond visually while providing a secure, protective setting.\u003c\/p\u003e\n\u003ch3\u003eThe Shoulders:\u003c\/h3\u003e\n\u003cp\u003eThe band features fine hand engraving, adding texture and character without distracting from the center stone. The detailing remains crisp and well-defined.\u003c\/p\u003e\n\u003ch3\u003eThe Craftsmanship:\u003c\/h3\u003e\n\u003cp\u003eThe ring shows the density and sharpness associated with die-struck construction, combined with hand finishing. This results in a level of durability and detail not typically found in modern cast pieces.\u003c\/p\u003e\n\u003ch3\u003eThe Hallmark:\u003c\/h3\u003e\n\u003cp\u003eThe ring is unmarked but tests as 14K white gold. The construction and materials are consistent with the stated period.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eVery good vintage condition with well-preserved detail.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLight surface wear consistent with age\u003c\/li\u003e\n\u003cli\u003eDiamond is secure and well-set\u003c\/li\u003e\n\u003cli\u003eEngraving remains visible and well-preserved\u003c\/li\u003e\n\u003cli\u003eBand shows light wear but no significant thinning or structural concerns\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52066579906871,"sku":null,"price":975.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Antique_14k_White_Gold_Diamond_Engagement_Ring.png?v=1778745376"},{"product_id":"orange-blossom-18k-white-gold-stacking-ring","title":"Traub Orange Blossom 18K White Gold Minimalist Stacking Ring","description":"\u003cp\u003eThis is a true Orange Blossom original—a vintage 18K white gold band defined by restraint and proportion rather than ornament. Pieces like this were made for continuous wear, built with a focus on comfort, durability, and quiet presence.\u003c\/p\u003e\n\u003cp\u003eThere’s a simplicity here that’s easy to overlook—but difficult to execute well. The surface is clean and uninterrupted, allowing the form itself to carry the piece. It doesn’t rely on detail or decoration. Instead, it offers balance, subtlety, and versatility.\u003c\/p\u003e\n\u003cp\u003eLight on the hand and low in profile, this ring integrates effortlessly into daily wear. It can stand on its own as a minimalist piece or function as a stacking or spacer band alongside more prominent rings.\u003c\/p\u003e\n\u003cp\u003eThe interior hallmark—“ORANGE BLOSSOM 18K”—anchors it. Produced by Traub’s well-known Orange Blossom line, this mark confirms both gold purity and maker, adding a level of authenticity not found in unmarked bands.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAuthentic Orange Blossom ring — hallmarked\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVintage, likely mid-20th century\u003c\/li\u003e\n\u003cli\u003eClean, unadorned design\u003c\/li\u003e\n\u003cli\u003e18K white gold\u003c\/li\u003e\n\u003cli\u003eUltra-slim, stackable profile\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker:\u003c\/strong\u003e Orange Blossom, hallmarked\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 18K white gold, stamped\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Vintage, likely mid-20th century\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Width:\u003c\/strong\u003e 1.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Height:\u003c\/strong\u003e 1.33 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.2 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Minimalist band\/stacking ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThis is an authentic Orange Blossom band, representing a period when even the most minimal jewelry was produced with intention and lasting quality.\u003c\/p\u003e\n\u003ch3\u003eThe Design\u003c\/h3\u003e\n\u003cp\u003eThe band is completely unadorned, relying on clean lines and proportion rather than surface detail. This simplicity gives it flexibility—it can be worn alone or layered without competing visually.\u003c\/p\u003e\n\u003ch3\u003eThe Form\u003c\/h3\u003e\n\u003cp\u003eAt just 1.2 mm wide, the ring is exceptionally slim. Designed for comfort and continuous wear, it sits close to the finger and pairs easily with other bands.\u003c\/p\u003e\n\u003ch3\u003eThe Craftsmanship\u003c\/h3\u003e\n\u003cp\u003eWhile minimal in appearance, the construction reflects a more deliberate manufacturing approach than modern mass-produced equivalents. The balance and finish are subtle but intentional.\u003c\/p\u003e\n\u003ch3\u003eThe Hallmark\u003c\/h3\u003e\n\u003cp\u003eThe interior stamp “ORANGE BLOSSOM 18K” confirms both maker and gold purity. Produced by Traub Manufacturing Company, the Orange Blossom line is recognized in vintage bridal jewelry, and signed examples carry added appeal.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eExcellent vintage condition. Light surface wear consistent with age. Surface remains smooth with no major dents or deformation observed. No structural issues.\u003c\/p\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52067252240695,"sku":null,"price":435.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/2026-04-29-12-28-47-_B_R8_S4_-1.png?v=1777492297"},{"product_id":"antique-art-deco-sapphire-ring-14k-white-gold-filigree","title":"Antique Sapphire Filigree Ring in 14K White Gold","description":"\u003cp\u003eThis is a true Art Deco original—an early 14K white gold ring from the 1930s, when design emphasized precision, structure, and finely detailed craftsmanship. The piece is defined by its balanced, architectural presence, centered around a richly colored blue sapphire set within a sculpted prong head.\u003c\/p\u003e\n\u003cp\u003eThere’s a quiet confidence to this ring. The sapphire draws you in rather than overwhelms, its saturated blue tone producing a deep, consistent glow under changing light. It’s not just color—it’s depth—calm, steady, and refined as it moves.\u003c\/p\u003e\n\u003cp\u003eThe architecture is where this ring sets itself apart. Delicate filigree work flows through the shoulders, paired with engraved detailing that adds texture without excess. The head is slightly elevated, giving the stone presence while maintaining a low, wearable profile. This is craftsmanship from a time when each element was finished by hand, not cast.\u003c\/p\u003e\n\u003cp\u003eThe 14K hallmark confirms gold purity, and the overall construction is consistent with authentic Art Deco period work—light, detailed, and intentionally built.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAuthentic Art Deco sapphire solitaire — filigree shoulders with engraved detail\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCirca 1930s, \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eRound Cut Blue Sapphire\u003c\/li\u003e\n\u003cli\u003eApprox. 5.0 mm center stone\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e14K White Gold\u003c\/li\u003e\n\u003cli\u003eFiligree and engraved shoulder design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker:\u003c\/strong\u003e Unknown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 14K White Gold, hallmarked\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Circa 1930s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Blue Sapphire, Round Cut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Stone Size:\u003c\/strong\u003e Approx. 5.0 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting Measurement:\u003c\/strong\u003e Approx. 5.5 mm across, prong-to-prong\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Carat Weight:\u003c\/strong\u003e Approx. 0.45–0.55 ct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Prong Set Solitaire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.0 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThis is an authentic Art Deco ring, showcasing the refined craftsmanship and structural elegance that defined the period.\u003c\/p\u003e\n\u003ch3\u003eThe Stone:\u003c\/h3\u003e\n\u003cp\u003eThe sapphire presents a strong, saturated blue color with a clean, even tone. Its size offers presence without excess, making it well suited for both everyday wear and special occasions.\u003c\/p\u003e\n\u003ch3\u003eThe Setting:\u003c\/h3\u003e\n\u003cp\u003eThe prong-set head elevates the stone slightly, allowing light to interact with the sapphire while maintaining a practical, secure profile.\u003c\/p\u003e\n\u003ch3\u003eThe Shoulders:\u003c\/h3\u003e\n\u003cp\u003eThe shoulders feature fine filigree and engraved detailing, adding depth and dimension. The openwork design lightens the structure visually while maintaining strength.\u003c\/p\u003e\n\u003ch3\u003eThe Craftsmanship:\u003c\/h3\u003e\n\u003cp\u003eThis ring reflects traditional fabrication methods, with hand-finished details and a level of precision that differs from modern mass-produced pieces.\u003c\/p\u003e\n\u003ch3\u003eThe Hallmark:\u003c\/h3\u003e\n\u003cp\u003eThe “14K” stamp confirms gold purity. The construction and detailing are consistent with early 20th-century manufacture.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eVery good antique condition.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLight surface wear consistent with age\u003c\/li\u003e\n\u003cli\u003eSapphire is secure and well-set\u003c\/li\u003e\n\u003cli\u003eFiligree and engraving remain well-preserved\u003c\/li\u003e\n\u003cli\u003eStructure is sound with no major thinning or damage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52067253780791,"sku":null,"price":975.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Antique_Sapphire_Ring_in_14K_White_Gold_Early_Art_Deco_Vintage_Ring.png?v=1778847444"},{"product_id":"art-deco-shield-form-old-european-cut-diamond-ring","title":"Circa 1935 Shield Form Old European Cut Diamond Ring","description":"\u003cp\u003eA quietly powerful old cut diamond ring from the final years of the \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco era\u003c\/a\u003e, framed within a sculptural shield-form bezel of engraved 14K white gold. Likely dating to approximately 1935, the ring reflects a restrained machine-age elegance in which proportion, structure, and material take precedence over excessive ornamentation.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\"\u003eOld European Cut diamond\u003c\/a\u003e displays lively light play and soft antique character, while the recessed setting gives the ring a grounded architectural presence that feels both deliberate and enduring. Hallmarked “585,” the piece may suggest possible European manufacture and carries the understated confidence often found in well-executed late Deco jewelry.\u003c\/p\u003e\n\u003cp\u003eNearly a century later, the ring remains remarkably contemporary. Its appeal lies not in size or ornament, but in the confidence of its proportions, the clarity of its geometry, and the enduring strength of its design. \u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCirca 1935\u003c\/li\u003e\n\u003cli\u003eShield form Art Deco design\u003c\/li\u003e\n\u003cli\u003eOld European Cut diamond\u003c\/li\u003e\n\u003cli\u003eRecessed architectural bezel\u003c\/li\u003e\n\u003cli\u003eEngraved 14K white gold mounting\u003c\/li\u003e\n\u003cli\u003ePossible European manufacture\u003c\/li\u003e\n\u003cli\u003eLate Deco \/ Streamline Modern influence\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 14K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmark:\u003c\/strong\u003e 585\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Circa 1935\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Possibly European\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Cut:\u003c\/strong\u003e Old European \/ Transitional Old Cut Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Diamond Weight:\u003c\/strong\u003e Approximately 0.20 carat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Face-Up Diamond Diameter:\u003c\/strong\u003e Approx. 3.48mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting Type:\u003c\/strong\u003e Recessed shield form bezel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Hand-finished, engraved mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 3.48 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Dimensions:\u003c\/strong\u003e 9.6mm x 9.6mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize: \u003c\/strong\u003e6.25\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eThe Stone\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAt its center, the Old European Cut diamond brings a softer, broader light return than a modern brilliant, complementing the ring's geometric architecture rather than competing with it.  The stone retains the slightly irregular personality associated with antique hand-cut diamonds, giving the ring warmth and individuality that modern precision-cut stones often lack.\u003c\/p\u003e\n\u003cp\u003eA visible inclusion is present near the center of the stone and is visible under close inspection and magnification. Rather than being concealed, this characteristic forms part of the diamond’s natural structure and antique authenticity.\u003c\/p\u003e\n\u003ch4\u003eThe Setting\u003c\/h4\u003e\n\u003cp\u003eThe diamond is framed within a recessed shield-form bezel that gives the ring much of its architectural presence. The setting creates a grounded, sculptural feel while securely holding the stone within the mounting.\u003c\/p\u003e\n\u003ch4\u003eThe Engraving\u003c\/h4\u003e\n\u003cp\u003eEngraved detailing remains visible throughout the mounting, adding texture and depth without interrupting the disciplined geometry of the design. The engraving contributes to the ring’s tactile quality while reinforcing its late Deco character.\u003c\/p\u003e\n\u003ch4\u003eThe Construction\u003c\/h4\u003e\n\u003cp\u003eThis piece reflects a more restrained side of Art Deco jewelry, where proportion and structure take precedence over excessive ornamentation. The compact shield form composition gives the ring a balanced and deliberate appearance that feels distinctly architectural.\u003c\/p\u003e\n\u003ch4\u003eThe Hallmark\u003c\/h4\u003e\n\u003cp\u003eA “585” hallmark is present on the ring, indicating 14K gold purity and possibly suggesting European manufacture. The hallmark serves as an important indicator of origin, material quality, and period authenticity.\u003c\/p\u003e\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003eVery good antique condition consistent with age and careful wear.\u003c\/p\u003e\n\u003cp\u003eThe mounting remains structurally sound, and the engraved detailing remains visible and tactile throughout the ring. Minor surface wear and age-appropriate signs of use are present under magnification, consistent with an authentic antique piece approaching a century in age.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to preserve accurate color, texture, and period detail. Enlarged images are intended to reveal the craftsmanship, antique character, and overall condition of the ring beyond what is typically visible at normal viewing distance.\u003c\/p\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52184908398903,"sku":null,"price":1100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/circa_1935_art_deco_shield_form_old_European_cut_diamond_ring_front.jpg?v=1779481825"},{"product_id":"antique-art-deco-old-european-cut-diamond-ring-19k-gold","title":"Antique Art Deco Old European Cut Diamond Ring in 19K White Gold","description":"\u003cp\u003eA visually commanding transitional \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eEarly Art Deco\u003c\/a\u003e diamond ring crafted in uncommon 19K white gold and set with approximately 2.0–2.20 carats total weight of Old European Cut diamonds throughout. The ring possesses a remarkable presence on the hand, balancing strong architectural structure with finely layered antique detail in a way that feels both sculptural and deeply refined.\u003c\/p\u003e\n\u003cp\u003eThe composition centers an approximately 1.10–1.20 carat \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\"\u003eOld European Cut diamond\u003c\/a\u003e framed by two substantial side stones and surrounded by additional bead-set accent diamonds within an elongated illusion-head arrangement. Openwork detailing, hand engraving, and milgrain accents create depth and dimensionality throughout the mounting, allowing the ring to catch light from nearly every angle while maintaining a grounded and deliberate visual weight. \u003c\/p\u003e\n\u003cp\u003eAn unusual “19K” hallmark adds further distinction to the piece and contributes to its refined material presence. Rather than relying on excess ornamentation, the ring succeeds through proportion, structure, brilliance, and carefully layered craftsmanship. \u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransitional Early Art Deco diamond ring\u003c\/li\u003e\n\u003cli\u003eOld European Cut diamonds throughout\u003c\/li\u003e\n\u003cli\u003eApproximate 2.00–2.20 carats total weight\u003c\/li\u003e\n\u003cli\u003e19K white gold mounting\u003c\/li\u003e\n\u003cli\u003eIllusion-head construction\u003c\/li\u003e\n\u003cli\u003eOpenwork and engraved details\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 19K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmark: \u003c\/strong\u003e19K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Late 1920s to Early 1930s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Cuts:\u003c\/strong\u003e Old European Cut diamonds throughout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Total Diamond Weight:\u003c\/strong\u003e Approximately 2.00-2.20 carats total weight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Center Diamond Weight:\u003c\/strong\u003e Approximately 1.10–1.20 carats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Diamond Diameter:\u003c\/strong\u003e Approx. 6.51mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Diamond Diameter:\u003c\/strong\u003e Approx. 4.35mm each, approximately .30 to .40ct each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent Diamond Diameter:\u003c\/strong\u003e Approx. 1.89mm each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting Type:\u003c\/strong\u003e Illusion-head construction with bead-set diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Hand-finished engraved mounting with openwork gallery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 3.56 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 5.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003ch4\u003eThe Stones\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ring is set entirely with Old European Cut diamonds displaying the broader flashes, higher crowns, visible culets, and softer light return associated with antique hand-cut stones. The larger center stone is framed by two substantial side diamonds and additional bead-set accent diamonds, creating a lively and visually cohesive antique diamond composition throughout the mounting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe diamonds display a bright white appearance with exceptional brilliance and visual presence when worn. The main diamonds contain visible antique character and inclusions consistent with hand-cut diamonds of the period. Several diamonds show minor edge abrasions and small chips visible under magnification, consistent with age and long-term wear, though none materially detracts from the ring’s overall beauty, brilliance, or impressive presence on the hand.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eThe Setting\u003c\/h4\u003e\n\u003cp\u003eThe elongated illusion-head construction gives the ring much of its architectural presence, visually expanding the composition while creating depth and layered dimensionality throughout the mounting. Openwork beneath the stones allows light movement through the gallery while maintaining a grounded sculptural appearance.\u003c\/p\u003e\n\u003ch4\u003eThe Engraving\u003c\/h4\u003e\n\u003cp\u003eHand engraving remains visible throughout the shoulders and gallery, adding texture and refinement without interrupting the disciplined geometry of the overall composition. Milgrain detailing softens the transitions between stone and metal while reinforcing the ring’s transitional Deco character.\u003c\/p\u003e\n\u003ch4\u003eThe Construction\u003c\/h4\u003e\n\u003cp\u003eThis piece reflects the transitional period between late antique craftsmanship and emerging Art Deco structure, balancing refined hand-finished detail with increasingly geometric composition. The result is a ring with exceptional finger presence that remains elegant, architectural, and highly wearable.\u003c\/p\u003e\n\u003ch4\u003eThe Hallmark\u003c\/h4\u003e\n\u003cp\u003eAn unusual “19K” hallmark is present on the ring, indicating a higher-than-standard gold purity more commonly associated with select European and Portuguese jewelry. The hallmark contributes to the ring’s distinctive character and serves as an important indicator of material quality and possible origin.\u003c\/p\u003e\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003eGood to Very Good antique condition consistent with age and careful wear.\u003c\/p\u003e\n\u003cp\u003eThe mounting remains structurally sound, with engraving and openwork details remaining visible throughout the ring. Minor surface wear and age-appropriate signs of use are present under magnification, consistent with an authentic antique piece approaching a century in age.\u003c\/p\u003e\n\u003cp\u003eThe diamonds remain lively and visually impressive when worn, with no condition issues materially detracting from the ring’s overall brilliance, structure, or visual presence.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to preserve accurate color, texture, and period detail. Enlarged images are intended to reveal craftsmanship, antique character, and overall condition beyond what is typically visible at normal viewing distance.\u003c\/p\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52188688515383,"sku":null,"price":4695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/White_Gold_Ring_Featuring_15_Diamonds.jpg?v=1779830202"},{"product_id":"art-deco-old-european-cut-diamond-ring-18k-white-gold","title":"Art Deco Old European Cut Diamond Ring in 18K White Gold","description":"\u003cp\u003eDelicate, graceful, and undeniably romantic, this authentic \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco engagement ring\u003c\/a\u003e captures the refinement that made the era one of the most celebrated periods in jewelry design. Crafted in solid 18K white gold, the ring is defined by its airy filigree, elegant proportions, and architectural openwork that allows light to move effortlessly through the mounting.\u003c\/p\u003e\n\u003cp\u003eViewed from any angle, the ring reveals a careful balance between structure and delicacy. The elevated gallery, flowing filigree, and hand-finished details create a sense of depth and craftsmanship that modern mountings rarely achieve. Nearly a century after its creation, the piece remains remarkably wearable while preserving the character and artistry of the period.\u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic Art Deco period ring\u003c\/li\u003e\n\u003cli\u003eElegant openwork filigree design\u003c\/li\u003e\n\u003cli\u003eSolid 18K white gold\u003c\/li\u003e\n\u003cli\u003eArchitectural elevated gallery\u003c\/li\u003e\n\u003cli\u003eHand-finished period craftsmanship\u003c\/li\u003e\n\u003cli\u003eClassic antique engagement ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMetal:\u003c\/strong\u003e 18K White Gold\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHallmark:\u003c\/strong\u003e Maker's mark and 18K hallmark present\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco, circa 1920s–1930s\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Natural Old European Cut Diamond\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEstimated Diamond Weight:\u003c\/strong\u003e Approximately 0.53 carat\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiamond Diameter:\u003c\/strong\u003e Approximately 5.1mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 2.2 grams\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRing Size:\u003c\/strong\u003e 7\u003c\/p\u003e\n\u003ch2\u003eThe Diamond\u003c\/h2\u003e\n\u003cp\u003eThe ring is centered with an \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\"\u003eOld European Cut diamond\u003c\/a\u003e measuring approximately 5.1mm in diameter and weighing approximately 0.53 carat. The stone displays the broad flashes, visible culet, and distinctive facet pattern associated with antique hand-cut diamonds. Bright, lively, and notably clean in appearance, the diamond exhibits excellent light return and strong visual presence within the mounting.\u003c\/p\u003e\n\u003cp\u003eUnlike modern brilliant cuts designed for maximum scintillation, Old European Cut diamonds produce larger flashes of light and a softer, more romantic character. The diamond complements the ring's refined architecture while preserving the unique personality that collectors and enthusiasts appreciate in antique hand-cut stones.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eThe Setting\u003c\/h3\u003e\n\u003cp\u003eThe mounting rises into an elegant openwork gallery that creates both lightness and visual depth. Fine filigree extends through the shoulders and beneath the stone, producing a mounting that feels architectural without appearing heavy.\u003c\/p\u003e\n\u003cp\u003eThe craftsmanship reflects the qualities often sought in authentic Art Deco jewelry: proportion, balance, detail, and a clear emphasis on both beauty and structure.\u003c\/p\u003e\n\u003ch3\u003eThe Hallmark\u003c\/h3\u003e\n\u003cp\u003eThe ring retains both possibley an unidentified maker's mark and an 18K hallmark, confirming its high gold purity and contributing to its authenticity as a period piece.\u003c\/p\u003e\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003eGood antique condition consistent with age and careful wear.\u003c\/p\u003e\n\u003cp\u003eThe mounting remains structurally sound, with filigree and gallery details remaining visible throughout. Minor surface wear is present under magnification and is consistent with an authentic antique ring approaching a century in age.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to preserve accurate color, texture, and period detail. Enlarged images are intended to reveal craftsmanship, antique character, and overall condition beyond what is typically visible at normal viewing distance.\u003c\/p\u003e","brand":"The TERA Collection","offers":[{"title":"Default Title","offer_id":52428088115511,"sku":null,"price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Art_Deco_Old_European_Cut_Diamond_Ring_in_18K_White_Gold.png?v=1781094616"},{"product_id":"art-deco-palladium-sapphire-diamond-ring","title":"Art Deco Palladium Sapphire \u0026 Diamond Ring","description":"\u003cp\u003eA finely executed \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco\u003c\/a\u003e ring crafted in palladium and centered by three square-cut blue sapphires arranged within a geometric diamond-set panel. Dating to the early decades of the twentieth century, the ring captures the architectural precision and disciplined symmetry that define the Art Deco period while maintaining a highly wearable scale suited to modern everyday wear.\u003c\/p\u003e\n\u003cp\u003eThe elongated plaque is framed by delicate milgrain detailing and accented by eight diamonds that provide subtle flashes of brilliance against the cool white palladium mounting. Beneath the top panel, an open pierced gallery introduces depth and dimension while showcasing the thoughtful craftsmanship characteristic of well-made period jewelry.\u003c\/p\u003e\n\u003cp\u003eRather than relying on excessive ornamentation, the ring succeeds through proportion, geometry, and structural balance. The crisp linear design, sapphire and diamond contrast, and distinctive palladium construction create a composition that feels unmistakably Art Deco from every angle.\u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArt Deco sapphire and diamond ring\u003c\/li\u003e\n\u003cli\u003ePalladium mounting\u003c\/li\u003e\n\u003cli\u003eThree square-cut blue sapphires\u003c\/li\u003e\n\u003cli\u003eEight accent diamonds\u003c\/li\u003e\n\u003cli\u003eGeometric plaque design\u003c\/li\u003e\n\u003cli\u003eFine milgrain detailing\u003c\/li\u003e\n\u003cli\u003ePierced gallery construction\u003c\/li\u003e\n\u003cli\u003eAuthentic period craftsmanship\u003c\/li\u003e\n\u003cli\u003eSize 6.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate Date:\u003c\/strong\u003e Circa 1920–1935\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Palladium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Stones:\u003c\/strong\u003e Three square-cut blue sapphires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSapphire Measurements:\u003c\/strong\u003e Approximately 6.4mm x 6.4mm center section\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e Eight diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Size:\u003c\/strong\u003e Approximately 1mm each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 2.87 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting Type:\u003c\/strong\u003e Geometric panel setting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Hand-finished pierced gallery mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003ch4\u003eThe Sapphires\u003c\/h4\u003e\n\u003cp\u003eThe ring is centered by three square-cut blue sapphires that immediately draw the eye against the cool white palladium mounting. Their rich blue coloration provides strong visual contrast while reinforcing the geometric symmetry that defines the overall design.\u003c\/p\u003e\n\u003cp\u003eTesting confirms the stones are corundum, the mineral species of sapphire. While the sapphires have not been conclusively determined to be natural or synthetic, they remain entirely appropriate to the period and highly complementary to the mounting.\u003c\/p\u003e\n\u003cp\u003eWhen examined under magnification, one sapphire appears slightly lighter than the others. In normal wear, however, the stones present as a cohesive group and contribute positively to the authentic character often encountered in antique jewelry.\u003c\/p\u003e\n\u003ch4\u003eThe Diamonds\u003c\/h4\u003e\n\u003cp\u003eEight small diamonds frame the sapphire panel, introducing subtle points of brightness throughout the composition. Though modest in size, they play an important architectural role by defining the plaque's shape and creating visual movement as the ring catches the light.\u003c\/p\u003e\n\u003cp\u003eThe diamonds enhance the design's overall sophistication while remaining secondary to the sapphires' strong geometric presence.\u003c\/p\u003e\n\u003ch4\u003eThe Setting\u003c\/h4\u003e\n\u003cp\u003eThe elongated plaque exemplifies the disciplined geometry that made Art Deco jewelry so distinctive. Multiple layers of milgrain detailing surround the sapphire panel, creating depth and visual complexity without overwhelming the composition.\u003c\/p\u003e\n\u003cp\u003eEvery decorative element serves the overall structure of the design. Rather than relying on excessive ornamentation, the ring achieves its visual impact through symmetry, proportion, and thoughtful craftsmanship.\u003c\/p\u003e\n\u003ch4\u003eThe Gallery \u0026amp; Construction\u003c\/h4\u003e\n\u003cp\u003eBeneath the top panel, the mounting features attractive pierced gallery work that introduces lightness and dimension while revealing the hand-finished nature of the ring's construction.\u003c\/p\u003e\n\u003cp\u003eThe shoulders transition cleanly into the central plaque through geometric forms that reinforce the ring's architectural character. These details remain clearly visible and contribute substantially to the ring's period authenticity.\u003c\/p\u003e\n\u003cp\u003ePalladium became increasingly popular during the early twentieth century as a durable white metal capable of supporting the intricate openwork and geometric styling favored during the Art Deco era. Its naturally white appearance complements both the sapphires and diamonds while emphasizing the ring's crisp structural lines.\u003c\/p\u003e\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003eVery good antique condition consistent with careful long-term preservation.\u003c\/p\u003e\n\u003cp\u003eThe mounting remains structurally sound with milgrain detail, pierced gallery work, and decorative elements remaining clearly visible throughout. Minor surface wear consistent with age and normal use is visible under magnification.\u003c\/p\u003e\n\u003cp\u003eThe sapphires and diamonds remain secure within their settings, and the ring presents beautifully when worn with no condition issues materially detracting from its overall beauty, craftsmanship, or historical character.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to preserve accurate color, texture, and period detail. Enlarged images are intended to reveal craftsmanship, antique character, and overall condition beyond what is typically visible at normal viewing distance.\u003c\/p\u003e","brand":"The TERA Collection","offers":[{"title":"Default Title","offer_id":52456475590967,"sku":null,"price":875.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/2026-05-18-11-29-07-_B_R8_S4_-1.jpg?v=1781266219"},{"product_id":"antique-no-heat-sapphire-ring-edwardian-18k-gold","title":"Antique Late Edwardian Natural No-Heat Sapphire Ring in 18K White Gold","description":"\u003cp\u003eVery refined and beautifully crafted, this antique late Edwardian sapphire ring captures the elegance and exceptional workmanship that defined the final years of the Edwardian era.  Crafted in solid 18K white gold, the ring features two GIL-certified natural no-heat blue sapphires accented by calibre-cut sapphires and intricate open filigree.\u003c\/p\u003e\n\u003cp\u003eThe delicate pierced gallery and airy architecture reflect the remarkable craftsmanship of the period, when jewelers emphasized graceful proportions and meticulous hand finishing over bold ornamentation. More than a century later, the ring remains both sophisticated and remarkably wearable, offering a timeless design that continues to appeal to collectors of fine antique jewelry.\u003c\/p\u003e\n\u003cp\u003eCombining certified natural gemstones, exceptional period craftsmanship, and careful preservation, this authentic Edwardian ring celebrates the artistry, history, and enduring beauty that define the finest antique jewelry.\u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic Antique Late Edwardian Sapphire Ring\u003c\/li\u003e\n\u003cli\u003eTwo GIL Certified Natural No-Heat Blue Sapphires\u003c\/li\u003e\n\u003cli\u003e18K White Gold\u003c\/li\u003e\n\u003cli\u003eCalibre-Cut Sapphire Accents\u003c\/li\u003e\n\u003cli\u003eIntricate Open Filigree\u003c\/li\u003e\n\u003cli\u003eCirca 1915–1920\u003c\/li\u003e\n\u003cli\u003eStyle:\u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/what-is-a-toi-et-moi-ring-meaning-history\"\u003e Toi et Moi\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSize 5.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid 18K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmarks:\u003c\/strong\u003e None Present\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Late Edwardian, Circa 1915–1920\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stones:\u003c\/strong\u003e Two GIL Certified Natural No-Heat Blue Sapphires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone One:\u003c\/strong\u003e Approximately 4.87 mm (0.53 carats)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Two:\u003c\/strong\u003e Approximately 4.81 mm (0.42 carats)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e Calibre-cut sapphires, total carat weight unknown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 4.89 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 5.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Sapphires\u003c\/h3\u003e\n\u003cp\u003eThe ring is centered by two natural blue sapphires independently certified by GIL as natural with no evidence of heat treatment. Displaying a bright medium-light blue color and pleasing brilliance, the sapphires measure approximately 0.53 and 0.42 carats. While the stones exhibit a slight difference in size, they present with a harmonious color that beautifully complements the design.\u003c\/p\u003e\n\u003cp\u003eThe deeper blue calibre-cut sapphire accents provide a pleasing contrast to the brighter medium-light blue center sapphires, enhancing the ring's overall visual balance.\u003c\/p\u003e\n\u003cp\u003eThe calibre-cut accent stones test as sapphire. Due to their small size, \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/synthetic-sapphires-antique-vintage-sapphire-rings\"\u003edetermining whether they are natural or laboratory-grown would require advanced gemological testing\u003c\/a\u003e beyond the scope of this evaluation.\u003c\/p\u003e\n\u003ch3\u003eThe Design\u003c\/h3\u003e\n\u003cp\u003eCrafted in solid 18K white gold, the ring showcases many of the characteristics collectors admire in fine late Edwardian jewelry. The delicate open filigree, pierced gallery, and refined proportions create a graceful mounting that allows light to enter from multiple angles while highlighting the remarkable hand craftsmanship of the period.\u003c\/p\u003e\n\u003cp\u003eThe elegant architecture of the setting provides visual lightness without sacrificing strength, resulting in a ring that is both sophisticated and comfortable to wear.\u003c\/p\u003e\n\u003ch3\u003eCertification\u003c\/h3\u003e\n\u003cp\u003eBoth center sapphires have been independently examined and certified by GIL as \u003cstrong\u003eNatural Blue Sapphires\u003c\/strong\u003e with \u003cstrong\u003eno evidence of heat treatment\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eNatural sapphires that have not undergone heat enhancement are increasingly sought after by collectors for preserving their natural color and characteristics, making certified untreated examples especially desirable.\u003c\/p\u003e\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003eVery good antique condition consistent with age and careful preservation. \u003c\/p\u003e\n\u003cp\u003eEvidence of a prior resize is visible upon close inspection. Prior to being offered for sale, the ring underwent minor restoration, including straightening sections of the delicate filigree, repairing a small crack, and refining earlier filigree repairs. The work was completed to preserve the ring's structural integrity while maintaining the ring's original antique character and craftsmanship.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to accurately capture the natural color of the sapphires, the intricate filigree, and the architectural details of the setting. Enlarged images are intended to reveal gemstone characteristics, surface condition, craftsmanship, and construction details beyond what is typically visible during normal viewing.\u003c\/p\u003e","brand":"The TERA Collection","offers":[{"title":"Default Title","offer_id":52515386556727,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Antique_Late_Edwardian_No-Heat_Sapphire_Ring_in_18K_White_Gold.jpg?v=1782224069"},{"product_id":"antique-art-deco-cko-old-european-cut-diamond-ring","title":"Antique Art Deco Cummins-Kremer CKO Old European Cut Diamond Solitaire | 18K White Gold","description":"\u003cp\u003eRefined and distinctly architectural, this authentic \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\" target=\"_blank\" rel=\"noopener\"\u003eArt Deco\u003c\/a\u003e\u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003e\u003c\/a\u003e Old European Cut diamond solitaire embodies the clean geometry and exceptional craftsmanship that defined the early years of the Art Deco era. Crafted in solid 18K white gold, the ring features a beautifully proportioned Old European Cut diamond set in a square four-prong mounting above finely hand-engraved shoulders that retain remarkable crispness more than a century after their creation.\u003c\/p\u003e\n\u003cp\u003eThe elegant pierced gallery and meticulously engraved orange blossom motifs reflect the artistry of early twentieth-century jewelers, who combined structural precision with delicate hand finishing. Rather than relying on elaborate ornamentation alone, the ring achieves its beauty through balanced proportions, thoughtful engineering, and refined decorative engraving. Its timeless design remains every bit as wearable today as when it was first crafted, making it equally appealing as an engagement ring or an addition to a fine antique jewelry collection.\u003c\/p\u003e\n\u003cp\u003eBearing the distinctive CKO maker's mark, attributed to Cummins-Kremer Co. of Los Angeles, California, this authentic Art Deco solitaire represents both exceptional American craftsmanship and the enduring beauty that defines the finest antique jewelry.\u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic Antique Art Deco Diamond Solitaire Ring\u003c\/li\u003e\n\u003cli\u003eOld European Cut Natural Diamond\u003c\/li\u003e\n\u003cli\u003eAttributed to Cummins-Kremer Co. (CKO)\u003c\/li\u003e\n\u003cli\u003eSolid 18K White Gold\u003c\/li\u003e\n\u003cli\u003eHand Engraved Floral Motif\u003c\/li\u003e\n\u003cli\u003eCirca 1925–1930\u003c\/li\u003e\n\u003cli\u003eSize 6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid 18K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmarks:\u003c\/strong\u003e CKO, 18K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker:\u003c\/strong\u003e Attributed to Cummins-Kremer Co. (CKO), Los Angeles, California\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco, Circa 1925–1935\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Natural Old European Cut Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Size:\u003c\/strong\u003e Approximately 5.2 mm, estimated approximately 0.50–.60 carat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 2 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Diamond\u003c\/h3\u003e\n\u003cp\u003eThe ring is centered on a lively Old European Cut natural diamond that displays the characteristics collectors admire in antique hand-cut stones. Its high crown, small table, and open culet create the broad flashes of light and distinctive facet pattern that distinguish Old European Cuts from their modern counterparts.\u003c\/p\u003e\n\u003cp\u003eUnlike modern brilliant-cut diamonds that emphasize intense scintillation, Old European Cut diamonds produce larger, slower flashes of light with exceptional depth and personality. The diamond remains bright and lively while preserving the handcrafted charm that makes these historic cuts increasingly sought after by collectors and antique jewelry enthusiasts.\u003c\/p\u003e\n\u003ch3\u003eThe Design\u003c\/h3\u003e\n\u003cp\u003eCrafted in solid 18K white gold, the ring reflects the restrained elegance of the Art Deco period through clean architectural lines and meticulous hand engraving. The beautifully engraved orange blossom motifs along the shoulders remain remarkably crisp, demonstrating the quality of both the original craftsmanship and the ring's careful preservation.\u003c\/p\u003e\n\u003cp\u003eThe elevated square four-prong mounting is supported by an open pierced gallery that allows light to enter beneath the diamond while creating an airy, balanced profile. Every element of the design serves both beauty and function, resulting in a refined solitaire that showcases the exceptional workmanship characteristic of fine American jewelry of the era.\u003c\/p\u003e\n\u003ch3\u003eMaker\u003c\/h3\u003e\n\u003cp\u003eThe interior of the shank bears the \u003cstrong\u003eCKO 18K\u003c\/strong\u003e hallmark, attributed to \u003cstrong\u003eCummins-Kremer Co.\u003c\/strong\u003e, an American jewelry manufacturer based in Los Angeles, California. Period jewelry trade directories record the company's \u003cstrong\u003eCKO\u003c\/strong\u003e trademark, linking the mark to a documented early twentieth-century maker.\u003c\/p\u003e\n\u003cp\u003eJewelry retaining an identifiable maker's mark offers collectors an additional connection to its history, preserving not only the craftsmanship of the piece itself but also the legacy of the workshop that created it.\u003c\/p\u003e\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003eVery good antique condition consistent with age and careful preservation.\u003c\/p\u003e\n\u003cp\u003eThe hand engraving remains exceptionally crisp throughout the shoulders and gallery, while the mounting retains its original architectural form with only minor signs of normal wear expected in an authentic antique ring. The diamond is secure in its setting, and the ring presents beautifully for both everyday wear and special occasions.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to accurately capture the brilliance of the Old European Cut diamond, the crisp hand engraving, and the architectural details of the setting. Enlarged images are intended to reveal gemstone characteristics, surface condition, craftsmanship, and construction details beyond what is typically visible during normal viewing.\u003c\/p\u003e","brand":"The TERA Collection","offers":[{"title":"Default Title","offer_id":52640454869303,"sku":null,"price":2195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Hero.jpg?v=1783699600"},{"product_id":"antique-art-deco-1-90ctw-diamond-navette-ring","title":"Antique Art Deco 1.90 ctw Diamond Navette Engagement Ring in 14K White Gold","description":"\u003ch2\u003eAntique Art Deco 1.90 ctw Diamond Navette Engagement Ring in 14K White Gold\u003c\/h2\u003e\n\u003cp\u003eGraceful, romantic, and undeniably sophisticated, this exceptional \u003cstrong\u003eantique diamond navette ring\u003c\/strong\u003e beautifully bridges the Belle Époque and Edwardian periods and the emerging Art Deco era. Dating to approximately \u003cstrong\u003e1915–1925\u003c\/strong\u003e, the ring is crafted in solid \u003cstrong\u003e14K white gold\u003c\/strong\u003e and showcases a magnificent antique marquise-cut center diamond framed by an extraordinary pair of \u003cstrong\u003ematched old pear-cut side diamonds\u003c\/strong\u003e—a remarkably rare combination seldom encountered in authentic vintage jewelry.\u003c\/p\u003e\n\u003cp\u003eTogether with forty-eight additional natural accent diamonds, the fifty-one stones total an estimated \u003cstrong\u003e1.90 carats total weight (ctw)\u003c\/strong\u003e, creating breathtaking brilliance across the elongated shield\/navette silhouette. Flowing curvilinear channels soften the bold geometric outline, while the finely pierced lace filigree gallery reflects master early 20th-century craftsmanship. The result is a unique Art Deco statement ring with remarkable presence, exceptional finger coverage, and timeless elegance that sits comfortable and low on the finger.\u003c\/p\u003e\n\u003cp\u003eWhether worn as a unique antique engagement ring, a high-end cocktail ring, or a heirloom piece for collectors, this authentic vintage ring captures one of the most celebrated transitional eras in fine jewelry history.\u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Authentic Antique Diamond Navette \/ Shield Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Carat Weight:\u003c\/strong\u003e Approx. 1.90 ctw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Count:\u003c\/strong\u003e 51 Natural Diamonds (No synthetic or lab-grown stones)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Diamond:\u003c\/strong\u003e Antique Marquise Cut (Navette Brilliant)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Diamonds:\u003c\/strong\u003e Rare Matched Pair of Old Mine \/ Pendeloque Pear Cuts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid 14K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco with Distinct Belle Époque \/ Edwardian Influence (Circa 1915–1925)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinger Coverage:\u003c\/strong\u003e 15.5 mm Head Length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid 14K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmarks:\u003c\/strong\u003e Stamped “14K”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Transitional Late Edwardian \/ Early Art Deco, Circa 1915–1925\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Natural Antique Marquise-Cut Diamond (approx. 10.0 × 5.0 mm, ~0.85–0.90 ct)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Stones:\u003c\/strong\u003e Two Natural Old Pear-Cut Diamonds (approx. 4.7 × 3.55 mm each, ~0.40–0.45 ctw pair)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e Forty-Eight (48) Natural Single\/Round Diamonds in Graduated Sizes (~0.55–0.60 ctw)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Total Diamond Weight:\u003c\/strong\u003e Approximately 1.90 Carats Total Weight (ctw)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Quality:\u003c\/strong\u003e Face-up bright with soft vintage warmth characteristic of antique diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Stone Count:\u003c\/strong\u003e 51 Natural Earth-Mined Diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Gross Weight:\u003c\/strong\u003e 4.7 Grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 7.75 (US Size 7¾ — Resizable by your local bench jeweler)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Length \/ Face Coverage:\u003c\/strong\u003e Approximately 15.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfile Height:\u003c\/strong\u003e Low-profile setting, sits approximately 3.0 mm off the finger\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Diamonds\u003c\/h3\u003e\n\u003cp\u003eAt its center sits an impressive antique marquise-cut diamond measuring approximately \u003cstrong\u003e10 × 5 mm\u003c\/strong\u003e, flanked by a remarkably matched pair of antique pear-cut diamonds. Their generous open culets, steep crowns, and broad facet reflections are period-correct to early 20th-century diamond cutting, providing distinct antique character and vintage warmth.\u003c\/p\u003e\n\u003cp\u003eForty-eight additional natural round accent diamonds line the outer frame and sweeping channels, forming a brilliant pave border that enhances the elongated navette silhouette. Combined, the 51 diamonds are estimated at \u003cstrong\u003e1.90 carats total weight\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe Design \u0026amp; Architecture\u003c\/h3\u003e\n\u003cp\u003eThis ring masterfully bridges two iconic eras. Its elongated navette silhouette and sweeping curved borders reflect the romance of the Edwardian and Belle Époque eras, while its symmetrical shield framing hints at early Art Deco architecture.\u003c\/p\u003e\n\u003cp\u003eThe finely hand-pierced under-gallery showcases open honeycomb craftsmanship, allowing maximum light to enter the diamonds while keeping the ring lightweight and breathable. Resting just \u003cstrong\u003e3 mm\u003c\/strong\u003e off the finger, this ring delivers high-impact knuckle-to-knuckle presence while maintaining a sleek, low profile that won't catch on clothing.\u003c\/p\u003e\n\u003ch3\u003eCondition Report\u003c\/h3\u003e\n\u003cp\u003eWonderfully preserved for a century-old piece dating to \u003cstrong\u003ec. 1915–1925\u003c\/strong\u003e, this ring is in very good antique condition. The 14K gold mounting retains crisp milgrain detail, secure settings, and beautiful original character.\u003c\/p\u003e\n\u003cp\u003eLight surface wear, minor micro-abrasions, and gentle signs of age are consistent with careful ownership over the past 100 years. Please review all macro photographs carefully as they serve as an integral part of this condition report.\u003c\/p\u003e\n\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003ePhotography Note\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to document the diamonds, craftsmanship, hallmarks, condition, and period details. Enlarged images may reveal gemstone characteristics and signs of age that are less noticeable during normal viewing.\u003c\/p\u003e","brand":"The TERA Collection","offers":[{"title":"Default Title","offer_id":52799850840375,"sku":null,"price":7900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Art_Deco_Diamond_Navette_Engagement_Ring_-_Perspective_View.jpg?v=1786109986"},{"product_id":"vintage-1940s-palladium-emerald-diamond-ring","title":"1940s Retro Palladium Natural Emerald \u0026 Diamond Floral Ring","description":"\u003cp\u003eDistinctive, romantic, and beautifully unconventional, this vintage palladium emerald and diamond ring dates to approximately the 1940s. Crafted in \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/what-is-palladium-jewelry-vintage-history\"\u003epalladium\u003c\/a\u003e and clearly stamped \u003cstrong\u003e“PALLADIUM,”\u003c\/strong\u003e the ring centers on a pear-shaped natural emerald surrounded by twenty natural diamond accents arranged within an elaborate foliate design.\u003c\/p\u003e\n\u003cp\u003eMeasuring approximately \u003cstrong\u003e18.3 × 12 mm across the face\u003c\/strong\u003e, the ring has excellent finger presence despite its relatively light 3.31-gram construction. Sculpted leaves, pierced details, and diamonds of varying sizes surround the emerald, creating an organic composition.\u003c\/p\u003e\n\u003cp\u003eThe emerald is especially appealing for its \u003cstrong\u003esoft green color and natural character\u003c\/strong\u003e. Visible inclusions give the stone depth, while its elongated pear shape forms the focal point. At normal viewing distance, the emerald faces up beautifully against the cool white palladium and surrounding diamonds.\u003c\/p\u003e\n\u003cp\u003eRather than relying on strict symmetry, this ring derives its beauty from texture, color, craftsmanship, and composition. It is a distinctive surviving example of \u003cstrong\u003eRetro-era palladium jewelry\u003c\/strong\u003e that remains highly wearable today.\u003c\/p\u003e\n\u003ch2\u003eAt A Glance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStriking 1940s Palladium Statement Ring\u003c\/li\u003e\n\u003cli\u003eBeautiful Soft Green Natural Emerald\u003c\/li\u003e\n\u003cli\u003eRomantic Floral \u0026amp; Foliate Design\u003c\/li\u003e\n\u003cli\u003eTwenty Sparkling Diamond Accents\u003c\/li\u003e\n\u003cli\u003eGenerous 18.3 mm Finger Presence\u003c\/li\u003e\n\u003cli\u003eSculptural Pierced Period Construction\u003c\/li\u003e\n\u003cli\u003eDistinctive Retro-Era Palladium Jewelry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid Palladium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmark:\u003c\/strong\u003e Stamped “PALLADIUM”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Retro Era, Circa 1940s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Natural Emerald\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmerald Shape:\u003c\/strong\u003e Pear Shape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Emerald Measurements:\u003c\/strong\u003e Approximately 8.43 × 5.0 mm, measured inside the bezel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e Twenty Natural Diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Sizes:\u003c\/strong\u003e Six approximately 2 mm; fourteen slightly under 1 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Face:\u003c\/strong\u003e Approximately 18.3 × 12 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 3.31 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 7\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Emerald\u003c\/h2\u003e\n\u003cp\u003eThe elongated pear-shaped emerald measures approximately 8.43 × 5.0 mm within the bezel. Its soft green color contrasts beautifully with the cool white palladium and bright diamond accents.\u003c\/p\u003e\n\u003cp\u003eThe emerald displays numerous internal characteristics visible under magnification that are consistent with natural emerald, and gemological testing is also consistent with emerald. \u003c\/p\u003e\n\u003cp\u003eThe stone shows surface scratches, abrasions, and areas of minor chipping under magnification. These characteristics are far more apparent in enlarged photography than during normal viewing. On the hand, the emerald remains attractive and presents with a pleasing soft green appearance.\u003c\/p\u003e\n\u003ch2\u003eThe Design\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e18.3 × 12 mm head\u003c\/strong\u003e creates substantial visual presence. Sculpted leaves, pierced openings, varying diamond sizes, and the elongated pear-shaped emerald give the ring the organic, naturalistic character associated with the Retro era.\u003c\/p\u003e\n\u003cp\u003eTwenty diamonds are distributed throughout the design, with six larger stones measuring approximately 2 mm and fourteen smaller accents measuring slightly under 1 mm. Their varied placement adds texture and sparkle without competing with the emerald.\u003c\/p\u003e\n\u003cp\u003eThe reverse reveals a pierced structure beneath the head, while the shoulders sweep upward to support the setting. Despite its generous visual scale, the ring weighs only 3.31 grams and remains comfortable on the hand.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eThe ring remains in \u003cstrong\u003eattractive and wearable vintage condition\u003c\/strong\u003e with age-related wear consistent with decades of use. The palladium mounting shows surface scratches and minor abrasions visible under magnification.\u003c\/p\u003e\n\u003cp\u003eThe emerald displays natural inclusions along with surface abrasions, scratches, and small areas of edge wear or chipping. These characteristics are intentionally shown in the enlarged photographs. \u003cstrong\u003eAt normal viewing distance, the stone presents considerably better than the magnified images suggest.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003ePhotography Note\u003c\/h2\u003e\n\u003cp\u003ePhotographed under high magnification and varied lighting to document the emerald, diamonds, palladium construction, hallmark, and present condition. Enlarged photography makes inclusions, scratches, abrasions, and gemstone wear more apparent than during normal viewing.\u003c\/p\u003e\n\u003cp\u003e```\u003c\/p\u003e","brand":"TERA","offers":[{"title":"Default Title","offer_id":52853598257463,"sku":null,"price":950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Dramatic-Angled-View-1940s-Retro-Foliate-Emerald-Diamond-Ring.jpg?v=1786876623"},{"product_id":"art-deco-diamond-filigree-navette-ring","title":"Authentic 1920s Art Deco Three-Stone Diamond Filigree Navette Ring in 18K White Gold","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eStriking, elegant, and exceptionally well preserved, this authentic \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\" rel=\"noopener\" target=\"_blank\"\u003eArt Deco\u003c\/a\u003e diamond filigree navette ring dates to approximately the 1920s and represents one of the finer examples of period filigree craftsmanship. Crafted in solid 18K white gold and set with three natural old-cut Transitional Cut diamonds, its elongated navette form creates remarkable presence on the hand while retaining the light, delicate character that makes original Art Deco filigree jewelry so captivating. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhat immediately distinguishes this ring is the quality of the workmanship. The classic navette silhouette provides a graceful framework for extraordinarily refined filigree, with a level of precision, symmetry, and detail that stands above many antique examples of the form. Nearly every surface contributes to the design, creating an intricate lace-like appearance that is impressive from a distance and becomes even more remarkable under magnification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThree natural \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/transitional-cut-diamonds-guide\" rel=\"noopener\" target=\"_blank\"\u003eTransitional Cut diamonds\u003c\/a\u003e are arranged vertically along the center of the navette, totaling approximately 0.33–0.35 carat. As the photographs show, the diamonds look beautiful in the setting, appearing bright and lively while providing a strong focal point for the elaborate design. Measuring approximately 22.2 mm from end to end, the elongated navette face gives the ring exceptional finger presence and visual impact far beyond its diamond weight.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAuthentic Art Deco diamond navette rings exhibiting this level of filigree craftsmanship are increasingly difficult to find, particularly with their delicate detailing so beautifully preserved. More than a century after it was created, this ring remains a striking example of an era when exceptional craftsmanship could transform a few grams of precious metal and three old-cut diamonds into something genuinely remarkable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eAt A Glance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic 1920s Art Deco Diamond Ring\u003c\/li\u003e\n\u003cli\u003eExceptional Period Filigree Craftsmanship\u003c\/li\u003e\n\u003cli\u003eThree Natural Old-Cut Transitional Diamonds\u003c\/li\u003e\n\u003cli\u003eRemarkably Precise and Symmetrical Openwork\u003c\/li\u003e\n\u003cli\u003eFine Milgrain and Hand-Engraved Detailing\u003c\/li\u003e\n\u003cli\u003eBeautifully Preserved Antique Condition\u003c\/li\u003e\n\u003cli\u003eBright, Lively Diamond Presentation\u003c\/li\u003e\n\u003cli\u003eDramatic Elongated Navette Design\u003c\/li\u003e\n\u003cli\u003eExceptional Finger Presence\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid 18K White Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmark:\u003c\/strong\u003e Stamped “18K”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco, Circa 1920s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Natural Transitional Cut Diamond measuring approximately 3.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpper Stone:\u003c\/strong\u003e Natural Transitional Cut Diamond measuring approximately 2.86 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower Stone:\u003c\/strong\u003e Natural Transitional Cut Diamond measuring approximately 2.86 mm\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Stone Count:\u003c\/strong\u003e Three Natural Diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Face:\u003c\/strong\u003e Approximately 22.2 × 11.68 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 3.21 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Diamonds\u003c\/h2\u003e\n\u003cp\u003eThe ring is set with three natural old-cut Transitional Cut diamonds (an \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-cut-diamonds-guide\"\u003eOld Cut diamond\u003c\/a\u003e) arranged vertically through the center of the elongated design. The largest diamond occupies the center of the composition, with two slightly smaller companion diamonds positioned above and below.\u003c\/p\u003e\n\u003cp\u003eThese diamonds beautifully illustrate the evolution of diamond cutting during the early twentieth century. Transitional Cuts occupy the period between the Old European Cut and the eventual modern round brilliant, often combining characteristics of both. The diamonds in this ring retain notably high crowns while displaying extremely small pinpoint to nearly imperceptible culets, a combination consistent with the changing cutting styles of the early Art Deco period.\u003c\/p\u003e\n\u003cp\u003eTheir appearance retains much of the personality associated with earlier old-cut diamonds. Rather than producing only the tighter, more uniform scintillation associated with modern precision cutting, the stones display broader flashes of light and individual facet patterns that complement the character of the antique setting beautifully.\u003c\/p\u003e\n\u003cp\u003eMost importantly, the diamonds present exceptionally well in the ring. They are bright and lively, and their vertical arrangement creates considerably greater visual impact than their approximately one-third carat combined weight might suggest. Surrounded by bright white gold, fine milgrain, and expansive openwork, the diamonds become the luminous center of a much larger composition.\u003c\/p\u003e\n\u003ch2\u003eThe Design\u003c\/h2\u003e\n\u003cp\u003eThe exceptional metalwork is the defining feature of this ring.\u003c\/p\u003e\n\u003cp\u003eMeasuring approximately 22.2 mm long by 11.68 mm wide, the elongated navette-style face is composed of an extraordinarily intricate arrangement of openwork filigree, fine milgrain borders, engraved details, geometric elements, and graceful foliate motifs.\u003c\/p\u003e\n\u003cp\u003eThe precision is unusual even among fine Art Deco filigree rings. The openwork is remarkably balanced from side to side, the major design elements remain beautifully symmetrical, and the fine milgrain is surprisingly straight and consistent throughout much of the composition.\u003c\/p\u003e\n\u003cp\u003eIn fact, the workmanship is so precise that I initially examined the ring particularly closely to determine whether it was truly a period piece. Antique filigree normally reveals small irregularities under magnification, while modern reproductions can sometimes appear almost mechanically uniform. Here, closer examination of the engraving, openwork, underside, diamond settings, and subtle variations in the hand finishing reveals the character expected of authentic period construction, simply executed at an unusually high level.\u003c\/p\u003e\n\u003cp\u003eAt the center, the three diamonds sit within a raised, elongated geometric panel that gives structure to the otherwise delicate composition. From there, the filigree expands outward in an almost lace-like arrangement, allowing open space and light to become integral elements of the design.\u003c\/p\u003e\n\u003cp\u003eThe detailing continues through the shoulders, where engraved motifs and additional openwork create a graceful transition into the shank. Very little space is visually neglected; even areas seen primarily from an angle received careful decorative attention.\u003c\/p\u003e\n\u003cp\u003eThis combination of delicate openwork and disciplined geometry is particularly characteristic of the finest Art Deco filigree jewelry. The 18K white gold is not simply a framework supporting the diamonds; it is one of the ring's primary artistic elements.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eExceptional metalwork defines this ring. Measuring approximately 22.2 mm long by 11.68 mm wide, the elongated navette form combines intricate openwork filigree, fine milgrain, geometric detailing, and subtle stylized foliate motifs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe precision is unusual even among fine Art Deco filigree rings. The openwork is remarkably balanced, the design remains beautifully symmetrical, and the milgrain is surprisingly straight and consistent. In fact, the workmanship is so precise that I initially examined the ring closely to confirm its period construction. Under magnification, subtle variations in the hand finishing reveal authentic antique craftsmanship—simply executed at an unusually high level.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThree diamonds form the raised geometric center of the navette, while delicate filigree expands outward in an almost lace-like pattern. Engraved and pierced detailing continues onto the shoulders, creating a graceful transition into the shank.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis balance of delicate openwork, restrained foliate detail, and disciplined Art Deco geometry is what makes the ring particularly special. The 18K white gold is not simply supporting the diamonds; it is an essential part of the artistry.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003ePhotography Note\u003c\/h2\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to accurately capture the Transitional Cut diamonds, exceptionally fine filigree, milgrain detailing, engraving, and period construction of the setting.\u003c\/p\u003e\n\u003cp\u003eAntique old-cut diamonds are individually cut and often display considerably more brilliance and broad flashes of light in motion than a still photograph can fully capture. Enlarged images are intended to reveal gemstone characteristics, surface condition, craftsmanship, and construction details beyond what is typically visible during normal viewing.\u003c\/p\u003e","brand":"The TERA Collection","offers":[{"title":"Default Title","offer_id":52861596270903,"sku":null,"price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Art-Deco-Diamond-Filigree-Dinner-Ring-in-White-Gold-Angle-View.jpg?v=1787073262"},{"product_id":"art-deco-platinum-toi-et-moi-two-stone-diamond-ring","title":"Art Deco Platinum Toi et Moi Diamond Ring with Unusual Shamrock Motif","description":"\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003cp\u003eStriking, romantic, and wonderfully distinctive, this authentic \u003cstrong\u003eArt Deco platinum \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/what-is-a-toi-et-moi-ring-meaning-history\"\u003eToi et Moi diamond ring\u003c\/a\u003e\u003c\/strong\u003e, dating to approximately the 1920s, pairs two natural Old European Cut diamonds in one of the most enduring romantic designs in antique jewelry. Meaning \u003cstrong\u003e“you and me,”\u003c\/strong\u003e the Toi et Moi style places two diamonds side by side—a beautifully simple expression of two lives joined together.\u003c\/p\u003e\n\u003cp\u003eFrom above, the ring is pure Art Deco elegance. Two \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\" target=\"_blank\" title=\"A guide to Old European Cut Diamonds\" rel=\"noopener\"\u003eOld European Cut diamonds\u003c\/a\u003e sit within crisp geometric surrounds edged in delicate milgrain, while beautifully hand-engraved shoulders draw the eye toward the center. The diamonds retain the broad flashes, visible culets, and individual character that make antique hand-cut stones so captivating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBut the most remarkable detail is almost completely hidden.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTurn the ring to the side and the platinum gallery reveals \u003cstrong\u003esix individually pierced three-leaf shamrocks—three beneath each diamond\u003c\/strong\u003e. It is an extraordinary amount of craftsmanship devoted to a detail that its original wearer would rarely have seen, and exactly the kind of thoughtful construction that makes fine antique jewelry so compelling.\u003c\/p\u003e\n\u003cp\u003eThe contrast is wonderful: disciplined Art Deco geometry from above, intricate botanical workmanship beneath, and two old-cut diamonds at the center. More than a century after it was made, the ring remains an exceptionally charming and distinctive example of period craftsmanship—and a particularly beautiful interpretation of the romantic Toi et Moi design.\u003c\/p\u003e\n\u003ch2\u003eAt A Glance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic 1920s Art Deco Diamond Ring\u003c\/li\u003e\n\u003cli\u003eRomantic Toi et Moi “You and Me” Design\u003c\/li\u003e\n\u003cli\u003eTwo Natural Old European Cut Diamonds\u003c\/li\u003e\n\u003cli\u003eApproximately 0.50 Carat Total Diamond Weight\u003c\/li\u003e\n\u003cli\u003eTested Platinum Period Construction\u003c\/li\u003e\n\u003cli\u003eExtraordinary Pierced Shamrock Gallery\u003c\/li\u003e\n\u003cli\u003eFine Milgrain \u0026amp; Hand-Engraved Detailing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Tested Platinum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco, Circa 1920s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Toi et Moi \/ Two-Stone Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamonds:\u003c\/strong\u003e Two Natural Old European Cut Diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Measurements:\u003c\/strong\u003e Approximately 3.6 mm each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Total Diamond Weight:\u003c\/strong\u003e Approximately 0.50 carat, calculated from mounted measurements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Face:\u003c\/strong\u003e Approximately 12.5 × 7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight Off Finger:\u003c\/strong\u003e Approximately 6.65 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 4.2 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Diamonds\u003c\/h2\u003e\n\u003cp\u003eThe ring is centered by two natural Old European Cut diamonds positioned side by side in the traditional Toi et Moi arrangement. Rather than one stone serving as the dominant center, the diamonds share the composition, giving the ring its characteristic balance and romantic symbolism.\u003c\/p\u003e\n\u003cp\u003eBoth diamonds display the personality associated with antique hand cutting. Their broader facet patterns and visible culets create flashes of light that feel distinctly different from the tighter, more uniform scintillation of a modern round brilliant.\u003c\/p\u003e\n\u003cp\u003eThe diamonds measure approximately 3.6 mm each and are estimated at approximately 0.50 carat combined based on mounted measurements. Surrounded by bright \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/platinum-vs-white-gold-antique-jewelry\" rel=\"noopener\" target=\"_blank\"\u003eplatinum and fine milgrain\u003c\/a\u003e, they present beautifully within the setting and form a strong focal point without overwhelming the design's delicacy.  They are evenly matched, with one being slightly warmer than the other.\u003c\/p\u003e\n\u003ch2\u003eThe Design\u003c\/h2\u003e\n\u003cp\u003eThe hidden workmanship is what makes this ring particularly special.\u003c\/p\u003e\n\u003cp\u003eViewed from above, the design is \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eunmistakably Art Deco\u003c\/a\u003e. Each diamond is framed by a geometric octagonal surround finished with delicate milgrain, creating the crisp symmetry and architectural character associated with 1920s jewelry. Hand engraving continues along the shoulders, softening the geometry as the design transitions into the shank.\u003c\/p\u003e\n\u003cp\u003eFrom the side, however, the ring reveals an entirely different personality.\u003c\/p\u003e\n\u003cp\u003eBeneath the diamonds are \u003cstrong\u003esix individually pierced three-leaf shamrocks, with three positioned beneath each stone\u003c\/strong\u003e. Rather than simply being engraved onto the platinum, the shamrocks are incorporated into the open gallery itself, turning part of the ring's supporting architecture into decoration.\u003c\/p\u003e\n\u003cp\u003eIt is an unusually thoughtful detail because much of this workmanship disappears when the ring is worn. The original jeweler nevertheless devoted considerable attention to an area intended to be discovered rather than immediately seen.\u003c\/p\u003e\n\u003cp\u003eWhether the shamrocks represented Irish heritage, good fortune, personal symbolism, or simply appealed to the original owner, we can't say. That mystery is part of the ring's charm. What remains is a wonderfully distinctive piece of period craftsmanship and a reminder that some of the finest details in antique jewelry are often hidden beneath the surface.\u003c\/p\u003e\n\u003cp\u003eThe unusually specific shamrock motif, combined with the extraordinary amount of workmanship devoted to a detail largely hidden when the ring is worn, suggests this may have been a bespoke or specially commissioned piece. Without surviving documentation, its original story cannot be known with certainty, but this does not feel like an incidental decorative detail. The six carefully incorporated shamrocks appear to have been an intentional and meaningful part of the design.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eThis antique ring remains beautifully preserved, particularly considering the delicacy of its construction and more than a century of history.\u003c\/p\u003e\n\u003cp\u003eThe pierced shamrock gallery remains remarkably well defined, while the geometric diamond surrounds, fine milgrain, hand engraving, and decorative shoulders retain excellent visual detail.\u003c\/p\u003e\n\u003cp\u003eAs expected with authentic antique jewelry, close examination under magnification reveals subtle evidence of age, wear, and hand finishing. These characteristics are consistent with the history and individually crafted nature of the piece and do not detract from its overall presentation.\u003c\/p\u003e\n\u003ch2\u003ePhotography Note\u003c\/h2\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to accurately capture the Old European Cut diamonds, fine milgrain, hand engraving, pierced shamrock gallery, and period construction of the platinum setting.\u003c\/p\u003e\n\u003cp\u003eAntique old-cut diamonds are individually cut and often display considerably more brilliance and broad flashes of light in motion than a still photograph can fully capture. Enlarged images are intended to reveal gemstone characteristics, surface condition, craftsmanship, and construction details beyond what is typically visible during normal viewing.\u003c\/p\u003e","brand":"TERA","offers":[{"title":"Default Title","offer_id":52892823257399,"sku":null,"price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Hero_Art_Deco_1920s_Platinum_Toi_et_Moi_Two_Stone_Old_European_Diamond_Rin.jpg?v=1787596666"},{"product_id":"circa-1930-art-deco-platinum-diamond-sapphire-ring","title":"Circa 1930 Art Deco Platinum Old European Cut Diamond \u0026 Sapphire Ring","description":"\u003cp\u003eBoldly geometric yet beautifully refined, this authentic \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco\u003c\/a\u003e platinum diamond and sapphire ring dates to approximately 1930 and captures the graphic sophistication that defined the period. Two lively old-cut diamonds anchor the composition, separated by a slender deep-blue sapphire and framed at either end by sharply pointed triangular sapphires. The contrast between bright diamonds, saturated blue sapphires, and cool platinum gives this compact ring remarkable presence on the hand.\u003c\/p\u003e\n\u003cp\u003eWhat makes the ring particularly compelling is how much design is concentrated into such a beautifully proportioned form. The alternating diamonds and sapphires create a strong geometric rhythm across the finger, while fine milgrain, engraved shoulders, and an intricate pierced gallery soften the architecture with the delicate craftsmanship expected of fine period platinum jewelry.\u003c\/p\u003e\n\u003cp\u003eThe diamonds are beautifully matched in color, brightness, and lively sparkle, while their hand-cut facet patterns retain the individuality that makes antique diamonds so appealing. Combined with the rich blue sapphires and beautifully detailed platinum setting, they create a ring that feels distinctly Art Deco from every angle—architectural and precise, yet delicate and remarkably wearable nearly a century after it was made.\u003c\/p\u003e\n\u003ch2\u003eAt A Glance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic Circa 1930 Art Deco Ring\u003c\/li\u003e\n\u003cli\u003eSolid Platinum Period Construction\u003c\/li\u003e\n\u003cli\u003eTwo Well-Matched Natural \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-cut-diamonds-guide\" rel=\"noopener\" target=\"_blank\"\u003eOld-Cut Diamonds\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eRich Blue Geometric Sapphire Accents\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFine Milgrain and Engraved Detailing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBeautifully Proportioned Geometric Design\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/platinum-vs-white-gold-antique-jewelry\"\u003eSolid Platinum\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmark:\u003c\/strong\u003e Stamped “PLAT”\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco, Circa 1930\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond One:\u003c\/strong\u003e Natural Old European Cut Diamond measuring approximately 3.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Two:\u003c\/strong\u003e Natural Old European \/ Transitional Cut Diamond measuring approximately 3.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Total Diamond Weight:\u003c\/strong\u003e Approximately 0.24–0.28 carat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Appearance:\u003c\/strong\u003e Well matched in apparent color, brightness, size, and face-up performance; lively with a slightly warm appearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Sapphire:\u003c\/strong\u003e Blue step-cut sapphire measuring approximately 1.75 × 3.66 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Sapphires:\u003c\/strong\u003e Two triangular-cut blue sapphires, each measuring approximately 2.96 mm along the flat side × 1.8 mm from the flat side to the point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSapphire Color:\u003c\/strong\u003e Dark blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Stone Count:\u003c\/strong\u003e Five — two natural diamonds and three blue sapphires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Head:\u003c\/strong\u003e Approximately 12 mm long × 4.67 mm wide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight Above Finger:\u003c\/strong\u003e Approximately 4.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 2.81\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Diamonds\u003c\/h2\u003e\n\u003cp\u003eThe ring is set with two natural old-cut diamonds measuring approximately 3.25 mm each and estimated at approximately 0.24–0.28 carat combined. They are beautifully matched in apparent color, size, brightness, and face-up performance, with a touch of warmth and lively sparkle that contrasts particularly well against the darker blue sapphires.\u003c\/p\u003e\n\u003cp\u003eUnder high magnification, subtle differences in their hand-cut facet patterns become visible. One displays a pronounced open culet and the broad, flower-like pattern characteristic of an \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\"\u003eOld European Cut diamond\u003c\/a\u003e, while the second has a considerably smaller culet and tighter central facet structure, suggesting a later Old European Cut approaching the \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/transitional-cut-diamonds-guide\"\u003eTransitional Cut\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSuch variation is characteristic of antique hand-cut diamonds. Despite these subtle technical differences, the stones were clearly well matched visually and perform beautifully together in the ring.\u003c\/p\u003e\n\u003ch2\u003eThe Sapphires\u003c\/h2\u003e\n\u003cp\u003eThree dark blue sapphires provide the strong color contrast central to the design. A narrow step-cut sapphire separates the two diamonds, while pointed triangular-cut sapphires terminate the composition at either end.\u003c\/p\u003e\n\u003cp\u003eThe sapphires have a rich, darker blue appearance that creates dramatic contrast against the bright diamonds and cool platinum. Their geometric shapes are integral to the ring's architecture rather than simply decorative accent stones.\u003c\/p\u003e\n\u003cp\u003eThe sapphires have not been submitted to a gemological laboratory, and their natural versus synthetic origin is currently undetermined.\u003c\/p\u003e\n\u003ch2\u003eThe Design\u003c\/h2\u003e\n\u003cp\u003eThe architecture of this ring is quintessentially Art Deco.\u003c\/p\u003e\n\u003cp\u003eTwo geometric platinum diamond settings dominate the composition, divided at the center by a narrow rectangular sapphire. At either end, pointed triangular sapphires extend the design outward, creating a crisp progression of alternating white and blue stones across the finger.\u003c\/p\u003e\n\u003cp\u003eFine milgrain outlines the principal elements, while engraved detailing continues through the shoulders and creates a graceful transition into the platinum shank. The profile reveals another layer of craftsmanship: beneath the stones is an intricate pierced platinum gallery that gives the setting visual lightness while demonstrating the attention paid even to areas primarily seen from an angle.\u003c\/p\u003e\n\u003cp\u003eAt approximately 12 mm long by 4.67 mm wide, the head is compact but visually substantial. It rises approximately 4.5 mm above the finger, maintaining a relatively low and wearable profile while the alternating diamonds and dark sapphires provide excellent finger presence.\u003c\/p\u003e\n\u003cp\u003eThe combination of old-cut diamonds, geometric sapphire accents, fine milgrain, engraving, and pierced platinum construction creates a wonderfully complete expression of Art Deco design.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eThe ring remains in very good antique condition with age-related wear consistent with a platinum ring dating to approximately 1930. The overall architecture remains well defined, and the diamonds, sapphires, pierced gallery, and engraved shoulder details present beautifully.\u003c\/p\u003e\n\u003cp\u003eUnder high magnification, some flattening is visible along portions of the platinum surrounding the diamonds, and areas of the original milgrain have softened or flattened with wear. These characteristics are considerably less apparent during normal viewing than in the enlarged photographs and do not detract from the overall presentation of the ring.\u003c\/p\u003e\n\u003cp\u003eThe ring retains the subtle surface character expected of authentic period jewelry rather than having been aggressively restored or refinished.\u003c\/p\u003e\n\u003ch2\u003ePhotography Note\u003c\/h2\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to accurately capture the old-cut diamonds, blue sapphires, milgrain, engraving, pierced gallery, surface condition, and period construction of the platinum setting.\u003c\/p\u003e\n\u003cp\u003eAntique hand-cut diamonds are individually fashioned and often display considerably more brilliance and broad flashes of light in motion than a still photograph can fully capture. Enlarged images are intended to reveal gemstone characteristics, surface condition, craftsmanship, and construction details beyond what is typically visible during normal viewing.\u003c\/p\u003e","brand":"TERA","offers":[{"title":"Default Title","offer_id":52910803124535,"sku":null,"price":1100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/art-deco-platinum-old-european-cut-diamond-and-sapphire-ring-angled-hero-view.jpg?v=1787904425"},{"product_id":"art-deco-transitional-diamond-filigree-ring-18k-gold","title":"Antique Art Deco 18K White Gold Transitional Cut Diamond Filigree Ring","description":"\u003cp\u003eSome of the most captivating details in an antique ring are not immediately obvious from the top. This early \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\" rel=\"noopener\" target=\"_blank\"\u003eArt Deco\u003c\/a\u003e diamond ring is a wonderful example. A lively transitional-cut diamond sits above an intricate 18K white gold setting, while a closer look reveals repeating heart-shaped motifs hidden within the openwork gallery.\u003c\/p\u003e\n\u003cp\u003eThe design has a romantic quality without feeling overtly sentimental. From above, it reads as an elegant diamond solitaire with beautifully detailed shoulders. Turn the ring to the side, however, and its architecture comes alive. Scrolling openwork rises beneath the diamond, with stylized hearts incorporated into the gallery and additional engraved detail extending along the shoulders.\u003c\/p\u003e\n\u003cp\u003eAt the center is a transitional-cut diamond, capturing the evolution between the broad faceting of earlier European cuts and the increasingly organized brilliance that would eventually characterize the modern round brilliant. This diamond is particularly lively, with a bright, crisp appearance in normal viewing.\u003c\/p\u003e\n\u003cp\u003eIt is the balance of the entire ring that earned it a place in The TERA Collection. The diamond is certainly the focal point, but it does not carry the ring by itself. The heart-motif gallery, engraving, openwork, and graceful proportions all contribute to a design that is distinctly antique while remaining remarkably wearable today.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEarly Art Deco, circa 1920s\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/transitional-cut-diamonds-guide\"\u003eTransitional-cut diamond\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eScrolling heart-motif openwork gallery\u003c\/li\u003e\n\u003cli\u003eEngraved shoulder detailing\u003c\/li\u003e\n\u003cli\u003e18K white gold\u003c\/li\u003e\n\u003cli\u003eApproximately 0.65 to 0.70 carat diamond, estimated while mounted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eEra:\u003c\/strong\u003e Early Art Deco, circa 1920s\u003cbr\u003e\u003cstrong\u003eMetal:\u003c\/strong\u003e \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/platinum-vs-white-gold-antique-jewelry\"\u003e18K white gold\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Bright white finish consistent with relatively recent rhodium plating\u003cbr\u003e\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.75\u003cbr\u003e\u003cstrong\u003eTotal Weight:\u003c\/strong\u003e 2.51 grams\u003cbr\u003e\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Diamond\u003cbr\u003e\u003cstrong\u003eCut:\u003c\/strong\u003e Transitional cut\u003cbr\u003e\u003cstrong\u003eDiamond Measurement:\u003c\/strong\u003e Approximately 5.73 mm diameter\u003cbr\u003e\u003cstrong\u003eEstimated Carat Weight:\u003c\/strong\u003e Approximately 0.65 to 0.70 carat, estimated while mounted\u003cbr\u003e\u003cstrong\u003eDiamond Appearance:\u003c\/strong\u003e Bright and lively with a near-colorless appearance\u003cbr\u003e\u003cstrong\u003eHead Width:\u003c\/strong\u003e Approximately 7.4 mm\u003cbr\u003e\u003cstrong\u003eHeight Above Finger:\u003c\/strong\u003e Approximately 7 mm \u003cbr\u003e\u003cstrong\u003eRear Shank Width:\u003c\/strong\u003e Approximately 1.48 mm \u003cbr\u003e\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.75\u003c\/p\u003e\n\u003ch2\u003eThe Stone\u003c\/h2\u003e\n\u003cp\u003eThe center diamond is a transitional cut, representing an important period in the evolution from the Old European Cut toward the modern round brilliant. Its faceting is more organized than that typically seen in earlier European cuts while retaining the individual optical character associated with diamonds cut before modern proportions became standardized.\u003c\/p\u003e\n\u003cp\u003eAt approximately 5.73 mm in diameter, the mounted diamond is estimated at approximately 0.65–0.70 carat. Because the stone remains mounted, this is an estimate rather than a measured carat weight.\u003c\/p\u003e\n\u003cp\u003eMore important visually is how the diamond performs. It is a lively stone that responds readily to changing light and presents with a bright, crisp, near-colorless appearance in normal viewing. No laboratory color or clarity grade is represented.\u003c\/p\u003e\n\u003cp\u003eThe diamond also feels appropriately proportioned to the setting. Its round outline remains the clear focal point while allowing the intricate architecture surrounding it to remain visible rather than disappearing beneath the stone.\u003c\/p\u003e\n\u003ch2\u003eThe Setting\u003c\/h2\u003e\n\u003cp\u003eThe 18K white gold setting is distinguished by its extensive openwork and the way its decoration continues around the ring rather than being confined to the face.\u003c\/p\u003e\n\u003cp\u003eMost charming are the stylized heart-shaped motifs incorporated into the gallery beneath the diamond. They are not immediately apparent when the ring is viewed straight on. Instead, they emerge as the ring is turned, integrated into scrolling openwork that rises from the shoulders toward the center setting. The hearts feel like part of the architecture rather than applied decoration, giving the ring a subtle romantic element.\u003c\/p\u003e\n\u003cp\u003eThe shoulders are equally considered. Engraved details and sculptural forms transition from the shank into the open gallery, drawing the eye naturally toward the diamond. From the side, the relatively high profile exposes much of this workmanship and gives the ring visual interest from angles that are often overlooked.\u003c\/p\u003e\n\u003cp\u003eThis is one of those antique settings where the undergallery matters. The diamond does not simply sit on top of an ornamental band; the architecture beneath it is an integral part of the design.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eThis ring is in very good to excellent antique condition, particularly considering its age. The intricate openwork remains crisp and well defined, including the stylized heart motifs within the gallery, while the engraved detailing across the shoulders remains remarkably strong.\u003c\/p\u003e\n\u003cp\u003eThe 18K white gold has a bright, even white appearance consistent with the ring having been rhodium plated relatively recently. The plating gives the ring a clean, highly reflective finish while preserving the definition of the underlying antique detail.\u003c\/p\u003e\n\u003cp\u003eThe diamond appears secure in its setting, and the open gallery and decorative elements present well throughout. The rear shank measures approximately 1.48 mm wide and remains substantial for continued wear.\u003c\/p\u003e\n\u003cp\u003eAs expected with an antique ring, minor surface marks and evidence of previous wear may be visible under magnification, but they are not prominent in normal viewing. Overall, the ring presents exceptionally well for its age.\u003c\/p\u003e\n\u003cp\u003ePlease review the photographs carefully, as they form an important part of the condition description and document the ring from multiple angles.\u003c\/p\u003e\n\u003ch2\u003eStyling \u0026amp; Wear\u003c\/h2\u003e\n\u003cp\u003eOn the hand, the ring has an appealing balance between delicacy and presence. The transitional-cut diamond remains the immediate focal point, while the widening shoulders frame it without making the ring feel heavy.\u003c\/p\u003e\n\u003cp\u003eIts approximately 7 mm height above the finger is also an important part of its character. Rather than hiding the gallery against the hand, the profile allows the scrolling openwork and heart motifs to remain visible during normal wear.\u003c\/p\u003e\n\u003cp\u003eThis would make a particularly compelling antique engagement ring or alternative engagement ring for someone who likes the simplicity and versatility of a solitaire but wants considerably more character than a modern setting provides. It is equally appropriate as an everyday or right-hand diamond ring.\u003c\/p\u003e\n\u003cp\u003eAs with any antique ring with detailed openwork and an elevated diamond setting, reasonable care should be taken during activities that could expose the ring to hard impacts or snagging.\u003c\/p\u003e\n\u003ch2\u003eA Word on Resizing\u003c\/h2\u003e\n\u003cp\u003eThe ring is currently a size 6.75.\u003c\/p\u003e\n\u003cp\u003eThe decorative work is concentrated primarily across the upper portion of the ring, leaving a comparatively plain section at the rear of the shank. This may allow resizing, but the jeweler should determine the appropriate adjustment.\u003c\/p\u003e\n\u003cp\u003eFor antique jewelry of this type, I recommend having a jeweler experienced with antique settings perform the resizing. Laser welding is preferred when appropriate because it keeps the work localized and minimizes unnecessary heat near the diamond and detailed upper structure.\u003c\/p\u003e\n\u003ch2\u003eA Note on Photography\u003c\/h2\u003e\n\u003cp\u003eOur jewelry is photographed at high magnification to show craftsmanship, condition, and detail as clearly as possible. This can make normal signs of age, wear, tool marks, and variations in finish appear more prominent than they are to the unaided eye. Please refer to the measurements provided for an accurate sense of scale.\u003c\/p\u003e","brand":"TERA","offers":[{"title":"Default Title","offer_id":52962895069495,"sku":null,"price":1850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/art-deco-transitional-cut-diamond-solitaire-filigree-ring-hero-view.jpg?v=1788878181"},{"product_id":"art-deco-aquamarine-diamond-mosaic-ring","title":"1920s Art Deco Aquamarine \u0026 Old European Cut Diamond Geometric Ring in 18K White Gold","description":"\u003cp\u003eSome Art Deco rings reveal themselves at first glance. Others reveal themselves the longer you study them. This remarkable 18K white gold aquamarine ring is one of those pieces, filled with unexpected details and an architectural complexity that is rarely encountered.\u003c\/p\u003e\n\u003cp\u003eSix pale icy-blue aquamarines come together in an intricate geometric composition, each shaped to occupy its own place within the design. Rather than surrounding a dominant center stone, the aquamarines become the design themselves, fitting together almost like pieces of a mosaic. At their precise intersection sits an unexpected Old European Cut diamond—a tiny jewel at the very heart of the ring.\u003c\/p\u003e\n\u003cp\u003eThe beauty continues well beyond the face. Strong Art Deco geometry gives way to an elaborate floral and foliate openwork gallery, while engraving carries the design into the shoulders. Viewed from above, from the side, or even from underneath, there is something new to discover.\u003c\/p\u003e\n\u003cp\u003eBeautifully balanced, wonderfully intricate, and distinctly different from the more familiar aquamarine rings of the period, this is a piece where no single element asks to dominate. Gemstones and metalwork work together as one complete composition—a remarkable survival of Art Deco craftsmanship and a natural addition to The TERA Collection.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic Art Deco, circa 1920s\u003c\/li\u003e\n\u003cli\u003eSix individually fitted custom-cut aquamarines, approximately 2.10 ctw estimated\u003c\/li\u003e\n\u003cli\u003e1.68 mm Old European Cut diamond at the center\u003c\/li\u003e\n\u003cli\u003e18K white gold\u003c\/li\u003e\n\u003cli\u003eGeometric face with floral and foliate openwork gallery\u003c\/li\u003e\n\u003cli\u003eLarge 19.46 × 13.24 mm face\u003c\/li\u003e\n\u003cli\u003eRing size 6.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco, circa 1920s\u003cbr\u003e\u003cstrong\u003eMetal:\u003c\/strong\u003e 18K White Gold\u003cbr\u003e\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.75\u003cbr\u003e\u003cstrong\u003eTotal Weight:\u003c\/strong\u003e 3.81 grams\u003cbr\u003e\u003cstrong\u003eRear Shank Height:\u003c\/strong\u003e Approximately 2.5 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary Gemstones:\u003c\/strong\u003e Six aquamarines\u003cbr\u003e\u003cstrong\u003eCut \/ Shape:\u003c\/strong\u003e Individually fitted custom geometric cuts\u003cbr\u003e\u003cstrong\u003eEstimated Total Aquamarine Weight:\u003c\/strong\u003e Approximately 2.10 carats total, estimated while mounted\u003cbr\u003e\u003cstrong\u003eAquamarine Color:\u003c\/strong\u003e Pale icy blue\u003cbr\u003e\u003cstrong\u003eTop \u0026amp; Bottom Aquamarines:\u003c\/strong\u003e Approximately 6 mm across at their widest points\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCenter Diamond:\u003c\/strong\u003e Old European Cut diamond\u003cbr\u003e\u003cstrong\u003eDiamond Measurement:\u003c\/strong\u003e Approximately 1.68 mm\u003cbr\u003e\u003cstrong\u003eEstimated Diamond Weight:\u003c\/strong\u003e Approximately 0.02 carat, estimated while mounted\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead Dimensions:\u003c\/strong\u003e Approximately 19.46 × 13.24 mm\u003c\/p\u003e\n\u003ch2\u003eThe Aquamarines \u0026amp; Diamond\u003c\/h2\u003e\n\u003cp\u003eThe six aquamarines are among the ring's most distinctive features. Rather than relying on conventional gemstone shapes, each appears to have been individually cut and fitted to a particular position within the mounting. Together they create an almost geometric mosaic, with the outlines of the gemstones themselves becoming part of the architecture.\u003c\/p\u003e\n\u003cp\u003eUnder magnification, the ring's deliberate design is striking. Their broad, remarkably shallow proportions create tremendous face-up presence, while their unusual tapered, triangular, and shield-like outlines correspond to the surrounding metalwork. These are not simply six aquamarines placed into a setting—the shapes of the stones help create the setting's visual geometry.\u003c\/p\u003e\n\u003cp\u003eLarge geometric facets give the pale blue aquamarines an icy, watery play of light rather than the appearance of a conventionally proportioned aquamarine. Their subtle color also allows the white-gold framework between the stones to remain visually important. Stone and metal share the composition rather than competing with one another.\u003c\/p\u003e\n\u003cp\u003eAt the exact center is perhaps the most delightful surprise: an \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/old-european-cut-diamonds-explained\" target=\"_blank\" rel=\"noopener\"\u003eOld European Cut diamond\u003c\/a\u003e measuring approximately 1.68 mm. Despite its minute scale, magnification reveals a high crown, complex facet structure, and visible culet. Rather than functioning as the dominant gemstone, the diamond becomes the tiny focal point around which the entire composition is organized.\u003c\/p\u003e\n\u003cp\u003eNothing about the design feels accidental.\u003c\/p\u003e\n\u003ch2\u003eThe Setting\u003c\/h2\u003e\n\u003cp\u003eThe contrast between the face and gallery is one of the ring's most compelling aspects. From above, the design is unmistakably \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/how-to-identify-authentic-art-deco-jewelry\"\u003eArt Deco\u003c\/a\u003e: geometric, symmetrical, and architectural. Six individually fitted aquamarines surround the central Old European Cut diamond, while narrow sections of 18K white gold divide the stones and form the composition's framework. Learn more about the history and differences of metals used in the Art Deco era in our \u003ca rel=\"noopener\" href=\"https:\/\/theteracollection.com\/blogs\/journal\/platinum-vs-white-gold-antique-jewelry\" class=\"ng-star-inserted\" target=\"_blank\"\u003eplatinum vs. white gold antique jewelry guide\u003c\/a\u003e\u003cb\u003e\u003ca rel=\"noopener\" href=\"https:\/\/theteracollection.com\/blogs\/journal\/platinum-vs-white-gold-antique-jewelry\" class=\"ng-star-inserted\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eViewed from the side, the character changes dramatically. The strong geometry of the face gives way to an extraordinarily detailed floral and foliate openwork gallery. Curving organic forms and lace-like openings fill the structure beneath the gemstones, creating an unexpected softness beneath the angular design above.\u003c\/p\u003e\n\u003cp\u003eThe decoration continues into the shoulders, where engraved details bridge the elaborate head and the simpler shank. Even areas that are largely hidden when the ring is worn received considerable attention. \u003c\/p\u003e\n\u003cp\u003eThis kind of construction makes turning an antique ring over so important. The face may create the first impression, but the gallery, shoulders, and underside often reveal just as much about the thought and craftsmanship that went into the piece. Here, those hidden details are every bit as compelling as the gemstones above.\u003c\/p\u003e\n\u003cp\u003eUnder magnification, subtle variations appear in the openwork, stone shapes, borders, and individual details. Face-up, they resolve into remarkable balance and symmetry—the perfectly imperfect character that gives genuine period jewelry so much of its personality.\u003c\/p\u003e\n\u003ch2\u003eStyling \u0026amp; Wear\u003c\/h2\u003e\n\u003cp\u003eAt approximately 19.46 × 13.24 mm, this ring has significant finger presence without relying on a single dominant gemstone. The broad, shallow custom-cut aquamarines spread beautifully across the finger while keeping the emphasis on the overall composition.\u003c\/p\u003e\n\u003cp\u003eIts pale icy-blue color and 18K white gold construction make it remarkably versatile. It would make an exceptional alternative engagement ring, statement ring, or distinctive everyday piece for someone drawn to authentic Art Deco design and jewelry that is unlikely to be mistaken for anything ordinary.\u003c\/p\u003e\n\u003cp\u003eAs with any gemstone ring, antique or new, sensible care is appropriate. Prongs can loosen, stones can shift, and impact damage can occur regardless of a ring's age. Periodic inspection by a qualified jeweler is always recommended for jewelry worn regularly.\u003c\/p\u003e\n\u003ch2\u003eA Word on Resizing\u003c\/h2\u003e\n\u003cp\u003eThe ring is currently a size 6.75.\u003c\/p\u003e\n\u003cp\u003eBecause of the elaborate construction of the head and the decorative treatment extending down through the shoulders, resizing requires a careful touch. To better understand how the shank, gallery, and shoulders interact during sizing, refer to our guide on the \u003ca href=\"https:\/\/theteracollection.com\/blogs\/journal\/anatomy-of-an-antique-ring\" target=\"_blank\" rel=\"noopener\"\u003eanatomy of an antique ring\u003c\/a\u003e. Any significant adjustment must preserve not only the structural integrity of the shank, but also the symmetry of the shoulders and the original balance of the design.\u003c\/p\u003e\n\u003cp\u003ePlease contact The TERA Collection if you would like to discuss sizing before purchase.\u003c\/p\u003e\n\u003ch2\u003eNote on Photography\u003c\/h2\u003e\n\u003cp\u003eOur jewelry is photographed at high magnification to show craftsmanship, condition, and detail as clearly as possible. This can make normal signs of age, wear, tool marks, and variations in finish appear more prominent than they are to the unaided eye. Please refer to the measurements provided for an accurate sense of scale.\u003c\/p\u003e","brand":"TERA","offers":[{"title":"Default Title","offer_id":52971983536439,"sku":null,"price":1850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Geometric_Art_Deco_Ring_circa_1920.jpg?v=1789074011"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/collections\/Architectural-White.jpg?v=1787682579","url":"https:\/\/theteracollection.com\/collections\/antique-platinum-white-gold-rings.oembed","provider":"TERA","version":"1.0","type":"link"}