Platinum Vintage Old Mine Cut Diamond Ring – GIA Certified

A truly exceptional vintage platinum diamond ring centered around a genuine Old Mine Cut diamond, set in an elegant, sculptural platinum mounting that highlights the stone’s antique character and fire.

While the accompanying GIA report lists the diamond as a “Round Brilliant,” this is a technical limitation of modern grading systems. GIA does not formally classify Old Mine Cut diamonds, and therefore assigns the closest contemporary category. In person, the stone clearly displays all the hallmark characteristics of an authentic Old Mine Cut: a high crown, chunky facets, soft pillowy outline, and romantic, candlelit brilliance that cannot be replicated by modern cuts.

This ring is a beautiful example of early 20th-century craftsmanship, marrying old-world charm with timeless elegance.

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Details
• Center Stone: Natural Old Mine Cut Diamond
• Total Carat Weight: Approximately 1.25 carats total
• Diamond Report: GIA (report included)
• Metal: Solid Platinum
• Ring Size: 6 ¼ (resizing available upon request)
• Total Weight: Approximately 5 grams
• Era: Circa 1920s–1930s (Art Deco / Transitional period)

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Why Old Mine Cut Diamonds Are Special

Old Mine Cut diamonds were hand-cut long before modern technology, prized for their depth, warmth, and dramatic sparkle rather than icy perfection. Each stone is unique — no two are alike — making this ring a true one-of-a-kind heirloom piece.

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Condition

Excellent vintage condition with beautifully preserved detailing. Minor wear consistent with age, adding to its authentic antique character.

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Perfect For
• Antique & vintage diamond collectors
• Engagement rings with soul and history
• Lovers of Old Mine Cut and Art Deco jewelry
• A meaningful heirloom to pass down generations

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What You’ll Receive
• The vintage platinum diamond ring
• Original GIA Diamond Report