1950s Oscar Heyman Gia 17.33 Carat No Heat Yellow Sapphire Ruby Diamond Platinum Ring, Size 7.5

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This exceptional Oscar Heyman Brothers ring is a remarkable Mid Century jewel, centered by a GIA-certified cushion cut yellow sapphire … Read more This exceptional Oscar Heyman Brothers ring is a remarkable Mid Century jewel, centered by a GIA-certified cushion cut yellow sapphire weighing an impressive 17.33 carats. Documented as Sri Lankan origin with no treatment, the sapphire offers extraordinary natural color, scale, and rarity. Its rich golden hue and softly rounded cushion shape create a luminous focal point with commanding presence and refined sophistication.
Framing the center stone are 12 emerald cut rubies weighing approximately 2.80 carats in total. Their vivid red color and sleek step-cut facets create a bold, elegant contrast against the yellow sapphire. An additional 10 round brilliant cut diamonds weighing approximately 0.30 carat, graded F-G color and VS clarity, bring crisp brilliance and balance to the platinum setting.
Crafted in platinum, numbered, and hallmarked with purity marks, this ring reflects the precision, artistry, and exceptional gemstone selection associated with Oscar Heyman Brothers. It is also accompanied by an Oscar Heyman certificate of authenticity, adding important provenance and collectible appeal.
Rare, vibrant, and truly unforgettable, this ring is perfect for someone who appreciates important signed jewelry, untreated gemstones, and extraordinary Mid Century craftsmanship. With its 17.33 carat no heat yellow sapphire, rich emerald cut rubies, bright diamond accents, and documented Oscar Heyman provenance, it is a museum-worthy statement piece designed to be treasured for generations. See less