Antique Platinum GIA Certified Round Diamond Ring

Antique Platinum GIA 1.56 ct Old European Cut Diamond Ring - VS2/J - Tapered Baguette Accents

An exceptional antique engagement ring in solid 900 platinum, featuring a GIA-certified 1.56-carat natural diamond cut in the celebrated Old European style-recognized for its open culet, tall crown, and broad hand-cut facets that radiate a soft, candlelit brilliance. The diamond is graded J color, VS2 clarity, combining gentle warmth with outstanding transparency and light return.

Flanked by two tapered baguette-cut diamonds, the composition achieves the architectural symmetry characteristic of early Art Deco refinement. Its interplay of round and linear geometry exemplifies balance, grace, and timeless sophistication. This ring remains a definitive example of early 20th-century craftsmanship-where romantic artistry met precision engineering in the dawn of the platinum era.

Specifications

Jewelry Type: Engagement Ring
Material: Solid Platinum (Pt900)
Style: Antique / Art Deco
Weight: 6.10 g
Measurements: Shank 2.4 mm · Head Height 8.0 mm
Ring Size: 4.75 (resizable)
Period: Early 20th Century
Condition: Excellent - Professionally cleaned and preserved
Hallmarks: PLAT
Certification: GIA Report Included

Center Stone

Type: Natural Diamond (GIA Certified)
Cut: Old European
Carat Weight: 1.56 ct
Color / Clarity: J / VS2
Character: Hand-cut faceting with open culet and tall crown proportions

Accent Stones

Type: Natural Diamonds
Shape / Cut: Tapered Baguettes
Total Weight: Approx. 0.20 ctw
Color / Clarity: G / VS
Setting: Prong and channel-mounted shoulders

Market Analysis

GIA-certified Old European Cut diamonds above 1.50 carats with VS clarity and preserved platinum settings remain highly coveted in both the collector and bridal markets.

Comparable References:

Christie's New York (2024): 1.55 ct OEC platinum ring with baguettes - realized $12,000 USD.

Sotheby's Geneva (2023): 1.50 ct OEC J/VS2 in platinum Art Deco mount - realized $10,800 USD.

Bonhams London (2023): 1.60 ct OEC platinum engagement ring - realized $9,700 USD.

Based on these results, this example's GIA pedigree, hand-cut symmetry, and intact period platinum mount establish a fair-market range of $10,000 - $13,000 USD, firmly placing it within the investment-grade segment of early 20th-century diamond jewelry.

Collector's Perspective

Old European cuts represent the soul of antique diamond artistry-crafted by eye and candlelight rather than machine precision. Their broad facets, open culets, and deep crowns produce a uniquely romantic brilliance unattainable in modern stones. This 1.56-carat example, harmonized by original platinum and tapered baguette shoulders, captures the exact transitional moment between Edwardian delicacy and Art Deco geometry-a jewel of history, authenticity, and enduring grace.

Auction Rules & Authenticity Guarantee

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Authenticity Guarantee
All items offered by Hannosh's Auctions are fully tested, authenticated, and guaranteed to be exactly as described and photographed. Each piece is vetted by Hannosh's in-house jewelers, gemologists, and GIA-trained professionals prior to listing.