Lot 256. Platinum and Diamond Necklace, weighing approximately 87.70 carats. Estimate 400,000 — 600,000 USD. Photo: Sotheby's.

Of graduated design, set with 70 emerald-cut diamonds weighing approximately 87.70 carats, internal circumference 15 inches; the central diamond fitted with a pendant hook.

Sotheby's. Magnificent Jewels Including the Legendary Stotesbury Emerald, New York, 25 Apr 2017, 10:00 AM