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Platinum, 97.30 carats Star Sapphire and Diamond Ring, Oscar Heyman & BrothersEstimation  20,000 — 30,000 USD. Lot sold 68,750 USD. Photo Sotheby’s.

Centered by a star sapphire weighing approximately 97.30 carats, framed by tapered baguette diamonds; together with a mounting so the ring may be worn as a pendant; size 4½, the ring and pendant mount with maker’s marks.

Sotheby’s. Important Jewels, New York, 05 févr. 2015, 10:00 AM