{"title":"Diamond Rings","description":"\u003cp\u003eDiscover a curated collection of antique and vintage diamond rings selected for their exceptional craftsmanship, enduring beauty, and historic character. From luminous Old European Cut diamonds to refined Art Deco and Edwardian designs, each ring is chosen for its authenticity, condition, and timeless elegance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","products":[{"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 separates itself. 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\u003cbr\u003eAuthentic Belais Brothers ring — LAIS 18K hallmark \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCirca 1915–1925\u003c\/li\u003e\n\u003cli\u003eOld European cut diamond\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\/Belais_Diamond_Ring.png?v=1780228904"},{"product_id":"vintage-diamond-eternity-band-900-platinum-ring","title":"Vintage 900 Platinum Round Diamond Eternity Band Ring","description":"\u003cp\u003eThis is a true vintage original—a platinum eternity band from a period when fine jewelry emphasized precision, balance, and continuous form. The piece is defined by its clean, uninterrupted line of round diamonds, set within a slender platinum frame.\u003c\/p\u003e\n\u003cp\u003eThere’s a quiet confidence to this ring. The diamonds draw you in through consistency rather than size, producing a continuous, refined light. It’s not just sparkle—it’s rhythm—subtle, controlled, and uniform as the band moves.\u003c\/p\u003e\n\u003cp\u003eThe structure is where this ring separates itself. The stones are arranged in a continuous eternity design, creating a smooth, uninterrupted line of brightness around the finger.\u003c\/p\u003e\n\u003cp\u003eUnbranded, yet consistent with vintage American platinum construction. This piece is accompanied by eBay Authenticity Guarantee verification.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cp\u003eVintage diamond eternity band — 900 platinum\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCirca 1930s–1950s\u003c\/li\u003e\n\u003cli\u003eRound diamonds\u003c\/li\u003e\n\u003cli\u003eTotal carat weight is approx. 1ct (visual estimate)\u003c\/li\u003e\n\u003cli\u003e900 platinum\u003c\/li\u003e\n\u003cli\u003eFull eternity band 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 900 Platinum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Circa 1930s–1950s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStones:\u003c\/strong\u003e Round Diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Size:\u003c\/strong\u003e Small, evenly matched stones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Carat Weight:\u003c\/strong\u003e Approx. 1ct (visual estimate)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Eternity Band\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 2.5 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThis is an authentic vintage diamond eternity band, showcasing the refined craftsmanship and material quality associated with early platinum jewelry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Diamonds:\u003c\/strong\u003e\u003cbr\u003eThe diamonds are small and evenly matched, producing a continuous line of light rather than individual flashes. Their consistency creates a clean, balanced visual effect across the band.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Setting:\u003c\/strong\u003e\u003cbr\u003eThe stones are set in a continuous eternity configuration, allowing the design to carry around the entire ring without interruption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Shoulders:\u003c\/strong\u003e\u003cbr\u003eAs a full eternity band, the design remains consistent throughout, with no single focal point or break in the visual rhythm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Craftsmanship:\u003c\/strong\u003e\u003cbr\u003eThe ring reflects precision fabrication, with a slim platinum structure designed to hold the stones securely while maintaining a refined profile.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Hallmark:\u003c\/strong\u003e\u003cbr\u003eThe ring is marked 900 platinum, confirming the metal purity. This designation is consistent with vintage platinum jewelry.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePre-owned — Good vintage condition\u003c\/li\u003e\n\u003cli\u003eLight surface wear consistent with age\u003c\/li\u003e\n\u003cli\u003eDiamonds appear secure and intact\u003c\/li\u003e\n\u003cli\u003eNo obvious gaps or major disruptions visible in the setting\u003c\/li\u003e\n\u003cli\u003eMinor wear consistent with age and use\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52064991183159,"sku":null,"price":1395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Platinum_900_Diamond_Eternity_Band.png?v=1779212158"},{"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 late Art Deco 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 where this ring sets itself 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\u003eRound Cut Diamond\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":"vintage-1940s-platinum-diamond-eternity-band-1ctw","title":"Vintage 1940's Platinum Diamond Band- Approx. 1ctw","description":"\u003cp\u003eThis is a true vintage platinum diamond band—a piece defined by structure, balance, and enduring presence. Likely dating to the 1940s, it reflects a period when design emphasized strength, refinement, and lasting materials.\u003c\/p\u003e\n\u003cp\u003eThere’s a quiet confidence to this ring. The diamonds draw you in without overwhelming, forming a continuous row of light across the top of the band. Their presence is controlled rather than sharp—producing a consistent, layered brilliance instead of isolated flashes.\u003c\/p\u003e\n\u003cp\u003eThe architecture is where this ring separates itself. The stones are set into a solid platinum band, creating a unified surface that feels both deliberate and durable. This is craftsmanship built for longevity—substantial, balanced, and designed to be worn over time.\u003c\/p\u003e\n\u003cp\u003eThe platinum composition has been tested and falls within the expected range for vintage platinum alloys, reinforcing the piece's material integrity and authenticity.\u003c\/p\u003e\n\u003ch2\u003eAt a Glance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eVintage platinum diamond band — tested\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLikely dating to the 1940s\u003c\/li\u003e\n\u003cli\u003e11 natural diamonds spanning the top of the band\u003c\/li\u003e\n\u003cli\u003eApprox. 1.00 carat total weight, estimated\u003c\/li\u003e\n\u003cli\u003ePlatinum, tested approx. 90–95%\u003c\/li\u003e\n\u003cli\u003eHeight 3.86 approx.\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 Platinum, tested approx. 90–95%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Likely dating to the 1940s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStones:\u003c\/strong\u003e 11 natural diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStone Size:\u003c\/strong\u003e Approx. 2.6–2.7 mm each, estimated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Carat Weight:\u003c\/strong\u003e Approx. 1.00 ctw, estimated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Channel \/ bead-set diamond band\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 6.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Width:\u003c\/strong\u003e 3.86 height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Thickness:\u003c\/strong\u003e 1.54 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.53 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThis is an authentic vintage platinum diamond band, showcasing the durability and refined construction associated with mid-20th century jewelry.\u003c\/p\u003e\n\u003ch3\u003eThe Diamonds\u003c\/h3\u003e\n\u003cp\u003eThe band is set with 11 natural diamonds, each measuring approximately 2.6–2.7 mm. The stones present as bright, near colorless, and well-matched across the row, creating a consistent and continuous line of light. While exact grading is not documented, the overall appearance is clean and cohesive with strong light return.\u003c\/p\u003e\n\u003ch3\u003eThe Setting\u003c\/h3\u003e\n\u003cp\u003eThe diamonds are set into a continuous channel across the top of the band, forming a clean, uninterrupted surface. This design emphasizes uniformity and structure rather than individual prominence.\u003c\/p\u003e\n\u003ch3\u003eThe Shoulders\u003c\/h3\u003e\n\u003cp\u003eThe shoulders transition smoothly from the diamond-set section into a solid platinum band, maintaining balance and proportion without unnecessary ornamentation.\u003c\/p\u003e\n\u003ch3\u003eThe Craftsmanship\u003c\/h3\u003e\n\u003cp\u003eThe ring reflects solid vintage platinum construction, with noticeable weight and density. The proportions and finishing give it a sense of permanence not often found in lighter modern bands.\u003c\/p\u003e\n\u003ch3\u003eThe Hallmark \/ Metal\u003c\/h3\u003e\n\u003cp\u003eWhile unbranded, the platinum has been tested and falls within the expected range for vintage platinum alloys, supporting both authenticity and material quality.\u003c\/p\u003e\n\u003ch2\u003eCondition\u003c\/h2\u003e\n\u003cp\u003eVery good vintage condition.  Light surface wear consistent with age. Some minor edge wear consistent with vintage platinum construction.  These details are subtle and not readily noticeable when worn.\u003cbr\u003e\u003cbr\u003eDiamonds appear secure and well set. No major structural issues observed.\u003c\/p\u003e","brand":"The Tera Collection","offers":[{"title":"Default Title","offer_id":52067262824759,"sku":null,"price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Platinum_Diamond_Band_with_Refined_Brilliance.png?v=1778848574"},{"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 Art Deco era, 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 Old European Cut diamond 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 Early Art Deco diamond ring crafted in uncommon 19K white gold and set with approximately 2.0–2.15 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 1.10–1.25 carat Old European Cut diamond 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\u003eUnknown Hallmark\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 2.15–2.30 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 Art Deco engagement ring 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":"antique-old-european-cut-diamond-ring-platinum","title":"Antique Old European Cut Diamond Ring in Platinum | 17 Diamonds | Circa 1918–1925","description":"\u003cp\u003eIntricate and unmistakably handcrafted, this graceful antique diamond ring captures the elegance of the transition from the Edwardian era into the early Art Deco period. Crafted in platinum, the ring is centered by a lively Old European Cut diamond surrounded by sixteen accent diamonds that flow through an airy openwork navette-inspired design. Every curve, bead, and engraved detail reflects the remarkable handcraftsmanship that defined fine jewelry in the early twentieth century.\u003c\/p\u003e\n\u003cp\u003eRather than relying on bold size alone, the ring creates its presence through balance, light, and detail. The pierced gallery allows light to reach the center diamond from below, while the surrounding diamonds and delicate milgrain soften the design into an elegant composition that remains just as beautiful today as when it was first created.\u003c\/p\u003e\n\u003cp\u003eMore than a century later, this ring stands as a beautiful example of authentic antique craftsmanship—a one-of-a-kind piece created by hand during an era when jewelry was built with remarkable attention to detail and artistry rarely duplicated today. \u003c\/p\u003e\n\u003ch3\u003eAt A Glance \u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic Antique Diamond Ring\u003c\/li\u003e\n\u003cli\u003eNatural Old European Cut Center Diamond\u003c\/li\u003e\n\u003cli\u003eSixteen Natural Accent Diamonds\u003c\/li\u003e\n\u003cli\u003eSolid Platinum\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHand-Applied Milgrain \u0026amp; Pierced Gallery\u003c\/li\u003e\n\u003cli\u003eCirca 1918–1925\u003c\/li\u003e\n\u003cli\u003eSize 7.5\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 Platinum (10% Iridium Alloy)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmarks:\u003c\/strong\u003e \"10% IR...\" (partially legible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Late Edwardian to Early Art Deco, Circa 1918–1925\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\u003eCenter Stone Diameter:\u003c\/strong\u003e Approximately 5.0 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated Center Weight:\u003c\/strong\u003e Approximately 0.50 carat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent Diamonds:\u003c\/strong\u003e Twelve approximately 1.5 mm and four approximately 1.0 mm natural diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Stones:\u003c\/strong\u003e Seventeen Diamonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 3.87 grams\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Size:\u003c\/strong\u003e 7.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Diamonds\u003c\/h3\u003e\n\u003cp\u003eThe ring is centered by a natural Old European Cut diamond measuring approximately 5.0 mm in diameter and estimated to weigh approximately 0.50 carat. The diamond displays the broad flashes of light and distinctive faceting that have made Old European Cuts enduringly admired for more than a century.\u003c\/p\u003e\n\u003cp\u003eSurrounding the center stone are sixteen natural accent diamonds individually set throughout the openwork mounting. Together they create a balanced presentation that enhances the center diamond while adding sparkle from nearly every angle without overwhelming the graceful design.\u003c\/p\u003e\n\u003cp\u003eUnder magnification, the center diamond displays natural internal characteristics consistent with an antique diamond. These inclusions are typical of genuine period stones and contribute to its individuality while remaining unobtrusive during normal viewing.\u003c\/p\u003e\n\u003ch3\u003eThe Design\u003c\/h3\u003e\n\u003cp\u003eCrafted in platinum, the ring beautifully reflects the transition between the graceful elegance of the late Edwardian era and the emerging geometry of early Art Deco design. The elongated navette-inspired form creates exceptional finger coverage while maintaining a refined profile that remains comfortable for everyday wear.\u003c\/p\u003e\n\u003cp\u003eThe delicate openwork, hand-applied milgrain, pierced gallery, and carefully engraved shoulders demonstrate the remarkable level of craftsmanship achieved by jewelers of the period. Each of the seventeen diamonds is individually positioned within the flowing design, creating a ring that feels harmonious rather than symmetrical, with every element contributing to its overall character.\u003c\/p\u003e\n\u003cp\u003eAlthough modest in weight, the ring possesses an impressive visual presence through its intricate architecture and beautifully proportioned design.\u003c\/p\u003e\n\u003ch3\u003eThe Hallmarks\u003c\/h3\u003e\n\u003cp\u003eThe ring bears a partially legible hallmark reading \u003cstrong\u003e\"10% IR...\"\u003c\/strong\u003e. While the remaining characters have become worn with age, the visible portion is consistent with the \u003cstrong\u003e\"10% IRID. PLAT.\"\u003c\/strong\u003e hallmark commonly found on early twentieth-century platinum jewelry.\u003c\/p\u003e\n\u003cp\u003ePlatinum alloyed with approximately 10% iridium was widely used during the Edwardian and early Art Deco periods for its strength and durability, making it particularly well-suited to the delicate pierced galleries, fine engraving, and intricate settings characteristic of the era. The visible hallmark is consistent with both the ring's construction and its estimated age.\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 openwork remains crisp, the engraving and milgrain retain excellent definition, and all diamonds appear secure in their settings. Normal signs of wear are present, consistent with a ring that has been carefully worn and enjoyed for more than a century.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to accurately capture the diamonds, hand craftsmanship, and 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":52534166683959,"sku":null,"price":2295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Old_European_Cut_Diamond_Ring_in_Platinum.jpg?v=1782553993"},{"product_id":"antique-old-european-cut-diamond-ring-edwardian-five-stone","title":"Antique Five-Stone Old European Cut Diamond Ring | Late Edwardian to Early Art Deco | Circa 1915–1","description":"\u003cp\u003eTimeless in both design and craftsmanship, this late Edwardian to early Art Deco five-stone diamond ring captures the enduring appeal of antique jewelry from the early twentieth century. Crafted in solid gold, the ring is centered by a lively Old European Cut diamond accented by four additional old-cut natural diamonds, while an intricately pierced gallery showcases the careful hand craftsmanship beneath the setting. \u003c\/p\u003e\n\u003cp\u003eRather than relying on a single large diamond, the ring draws its beauty from balance, proportion, and the distinctive character of hand-cut stones. The Old European Cut center diamond displays the broad, romantic flashes of light that have made antique diamonds so highly sought after, while the surrounding old-cut diamonds complete the classic five-stone arrangement with the soft brilliance unique to antique diamond cutting.\u003c\/p\u003e\n\u003cp\u003eMore than a beautiful antique ring, this piece reflects a pivotal moment in jewelry design as the flowing elegance of the Edwardian era gradually evolved into the clean symmetry of early Art Deco. Its authentic period craftsmanship, timeless silhouette, and wearable design make it an excellent choice as an engagement ring, anniversary gift, or a meaningful addition to an antique jewelry collection.\u003c\/p\u003e\n\u003ch3\u003eAt A Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuthentic Antique Five-Stone Diamond Ring\u003c\/li\u003e\n\u003cli\u003eCenter Old European Cut Natural Diamond\u003c\/li\u003e\n\u003cli\u003eFour Old-Cut Natural Diamonds\u003c\/li\u003e\n\u003cli\u003eApprox. 0.65–0.70 Carat Total Weight\u003c\/li\u003e\n\u003cli\u003eSolid Gold\u003c\/li\u003e\n\u003cli\u003eHand-Pierced Openwork Gallery\u003c\/li\u003e\n\u003cli\u003eLate Edwardian to Early Art Deco\u003c\/li\u003e\n\u003cli\u003eCirca 1915–1922\u003c\/li\u003e\n\u003cli\u003eSize 5.75\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid Gold (Hallmarked 14K, acid tested approximately 16K)\u003cbr\u003e\u003cstrong\u003eHallmarks:\u003c\/strong\u003e 14K\u003cbr\u003e\u003cstrong\u003eEra:\u003c\/strong\u003e Late Edwardian to Early Art Deco, Circa 1915–1922\u003cbr\u003e\u003cstrong\u003eCenter Stone:\u003c\/strong\u003e Old European Cut Natural Diamond, approximately 3.80 mm\u003cbr\u003e\u003cstrong\u003eAccent Stones:\u003c\/strong\u003e Four old-cut natural diamonds measuring approximately 3.34 mm (2) and 3.08 mm (2)\u003cbr\u003e\u003cstrong\u003eTotal Carat Weight:\u003c\/strong\u003e Approximately 0.65–0.70 carat total weight\u003cbr\u003e\u003cstrong\u003eTotal Stone Count:\u003c\/strong\u003e Five Natural Diamonds\u003cbr\u003e\u003cstrong\u003eRing Weight:\u003c\/strong\u003e 1.92 grams\u003cbr\u003e\u003cstrong\u003eRing Size:\u003c\/strong\u003e 5.75\u003c\/p\u003e\n\u003ch3\u003eThe Diamonds\u003c\/h3\u003e\n\u003cp\u003eThe ring is centered by a natural Old European Cut diamond measuring approximately 3.80 mm, displaying the broad facets, open culet, and distinctive personality that define antique diamond cutting. Four additional old-cut natural diamonds measuring approximately 3.34 mm (2) and 3.08 mm (2) complete the traditional five-stone design, bringing the estimated total diamond weight to approximately 0.65–0.70 carat total weight.\u003c\/p\u003e\n\u003cp\u003eAs is common with antique jewelry, the diamonds display individual characteristics rather than modern matched calibration. The center Old European Cut is the brightest and most lively of the five stones. The two outer diamonds are well matched to one another, while the two inner diamonds exhibit a softer, slightly milky appearance. This symmetrical arrangement preserves the ring's balanced presentation while reflecting the individuality often found in genuine hand-cut antique diamonds.\u003c\/p\u003e\n\u003ch3\u003eThe Design\u003c\/h3\u003e\n\u003cp\u003eCrafted during the transition from the Edwardian era into early Art Deco, this ring combines the softer lines of the earlier period with the increasing emphasis on symmetry that would soon define Art Deco jewelry. The hand-pierced gallery provides both structural strength and visual interest, allowing light to pass beneath the diamonds while showcasing the skilled bench work that remains visible more than a century later.\u003c\/p\u003e\n\u003cp\u003eThe classic five-stone arrangement has remained one of the most enduring designs in fine jewelry. Its balanced proportions, comfortable profile, and authentic period craftsmanship make this ring equally suited for everyday wear or as a treasured addition to an antique jewelry collection.\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 diamonds appear secure in their settings, and the ring retains its attractive period details. The ring shows evidence of a historic shank replacement, a common restoration that helps ensure continued wearability while preserving the original antique head and gallery. A fine surface line is visible on one shoulder where the head joins the shank. Based on inspection, it does not appear to extend through the metal or exhibit movement, and it is believed to be stable. As a precaution, the ring is scheduled for professional evaluation and repair prior to shipment to ensure long-term structural integrity. Light surface wear is present throughout, consistent with a ring that has been carefully worn and enjoyed for more than a century.\u003c\/p\u003e\n\u003cp\u003eThis ring will undergo a professional inspection and any necessary structural repairs prior to shipment, at no additional cost to the buyer.\u003c\/p\u003e\n\u003ch3\u003ePhotography Note\u003c\/h3\u003e\n\u003cp\u003ePhotographed under soft-spectrum lighting and high magnification to accurately capture the diamonds, hand craftsmanship, and period 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":52597251506487,"sku":null,"price":985.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Late_Edwardian_Transition_Jewelry.jpg?v=1783040011"},{"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 Art Deco 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":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8889\/3239\/files\/Antique_Art_Deco_Cummins-Kremer_CKO_Old_European_Cut_Diamond_Ring_Front.jpg?v=1783599588"}],"url":"https:\/\/theteracollection.com\/collections\/diamond-rings.oembed?page=2","provider":"The TERA Collection","version":"1.0","type":"link"}