Lot 88. Important Platinum, Fancy Gray-Blue Diamond and Diamond Ring, weighing 5.07 carats. Estimate 750,000 — 1,000,000 USD. Photo: Sotheby's.

Set with an emerald-cut Fancy Gray-Blue diamond weighing 5.07 carats, the mounting accented by baguette, triangle and single-cut diamonds weighing approximately .30 carat, size 3¾, expandable; circa 1930.

Accompanied by GIA report no. 2173943317 stating that the diamond is Fancy Gray-Blue, Natural Color, VVS2 clarity..

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