Antique Old European Cut Diamond Ring in Platinum | 17 Diamonds | Circa 1918–1925

$2,295.00
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Intricate 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.

Rather 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.

More 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. 

At A Glance 

  • Authentic Antique Diamond Ring
  • Natural Old European Cut Center Diamond
  • Sixteen Natural Accent Diamonds
  • Solid Platinum
  • Hand-Applied Milgrain & Pierced Gallery
  • Circa 1918–1925
  • Size 7.5

Specifications

  • Metal: Solid Platinum (10% Iridium Alloy)
  • Hallmarks: "10% IR..." (partially legible)
  • Era: Late Edwardian to Early Art Deco, Circa 1918–1925
  • Center Stone: Natural Old European Cut Diamond
  • Center Stone Diameter: Approximately 5.0 mm
  • Estimated Center Weight: Approximately 0.50 carat
  • Accent Diamonds: Twelve approximately 1.5 mm and four approximately 1.0 mm natural diamonds
  • Total Stones: Seventeen Diamonds
  • Ring Weight: 3.87 grams
  • Ring Size: 7.5

The Diamonds

The 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.

Surrounding 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.

Under 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.

The Design

Crafted 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.

The 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.

Although modest in weight, the ring possesses an impressive visual presence through its intricate architecture and beautifully proportioned design.

The Hallmarks

The ring bears a partially legible hallmark reading "10% IR...". While the remaining characters have become worn with age, the visible portion is consistent with the "10% IRID. PLAT." hallmark commonly found on early twentieth-century platinum jewelry.

Platinum 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.

Condition

Very good antique condition consistent with age and careful preservation.

The 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.

Photography Note

Photographed 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.

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Shipping & Returns

Fast & Secure Shipping

  • Standard Service: We ship via 2-Day Priority Mail to ensure your piece arrives quickly and safely.
  • Signature Required: For your protection and the security of your heirloom, a Signature is Required upon delivery for all orders over $500.
  • Custom Requests: If you require a different shipping method or have specific delivery needs (such as holding at a local post office), please contact us at 978-260-0422 or kevin.vitali@live.com prior to shipment.
  • Processing: Orders are typically shipped within 24–48 hours of payment.

Our 21-Day Promise

We want you to fall in love with your piece. To provide you with total peace of mind, we offer a 21-day evaluation period. Take the time to ensure the fire, the history, and the feel are exactly what you dreamed of.

Return Policy Details

  • The Security Tag: For your protection and ours, please keep the security tag attached while you decide. Returns are only accepted if the T·E·R·A security tag remains intact and untampered. Removal of the tag constitutes final acceptance of the item.
  • Condition: To preserve the integrity of our antique collection, items must be returned in their original, unworn, and unaltered condition. Any third-party alterations (such as resizing) render the sale final.
  • Return Shipping: The cost and logistics of return shipping are the responsibility of the buyer. * Insurance: For your protection, all returns must be shipped via a tracked and fully insured method. T·E·R·A cannot be held responsible for items lost or damaged during return transit.

Our 21-Day Promise We want you to fall in love with your piece. To give you peace of mind, we offer a 21-day evaluation period. Take the time to ensure the fire, the history, and the feel are exactly what you dreamed of.

The Details:

  • Security Tag: For your protection and ours, please keep the security tag attached while you decide. Returns are only accepted if the tag remains intact and untampered.
  • Condition: To preserve the value of our collection, items must be returned in their original, unworn, and unaltered antique condition.
  • Our Goal: If, for any reason, you aren't thrilled, reach out. We are committed to making sure your experience with TERA is as timeless as our jewelry.

Condition and Expectations

Many pieces in the TERA Collection are a century old or more. They have been worn, cherished, gifted, celebrated, and carried through generations before arriving here. Gentle wear, subtle signs of age, and the occasional evidence of historic stewardship should be expected and are considered part of the character that makes antique jewelry impossible to replicate.

Our photography is intentionally detailed and often captured at extreme magnification. In many cases, the images reveal details, textures, and tiny imperfections that are difficult or impossible to see during normal wear. This approach reflects our commitment to documenting each piece as completely as possible, ensuring that its condition, craftsmanship, and character are faithfully represented.

The result is simple: when your piece arrives, there should be no surprises. What you see is an authentic record of a jewel's present condition, preserving both its beauty and the story written into it over time.

If a condition issue exceeds what would normally be expected from a piece of its age, it will always be specifically disclosed within the listing.

Because every collector values different details, we are always happy to provide additional photographs, videos, measurements, or condition documentation whenever possible. If there is a particular aspect of a piece you would like to examine more closely, please don't hesitate to ask.

Our hope is simple: that the piece you receive is exactly the piece you expected to receive. We would always rather answer one more question than leave a doubt unanswered.

Antique platinum diamond ring with Old European Cut center diamond and openwork setting

Antique Old European Cut Diamond Ring in Platinum | 17 Diamonds | Circa 1918–1925

$2,295.00