Platinum and 10.29 carats Diamond Ring. Estimate $620,000 — 680,000 (563,488 - 618,019 EUR). Photo: Sotheby's.

Set with an old mine brilliant-cut diamond weighing 10.29 carats, accented by round diamonds weighing approximately .25 carat, size 6½.

Accompanied by GIA report no. 2165113609 stating that the diamond is D color, VVS2 clarity.

Sotheby's. Magnificent Jewels, New York, 21 avr. 2015, 10:00 AM