Lot 222. An Important 25.03 carats DF Type IIa Diamond Ring. Estimate 2,900,000 — 3,500,000 USD. Lot sold 3,495,000 USD. © Sotheby's.

Set with an emerald-cut diamond weighing 25.03 carats, size 6½; illustrated unmounted.

Accompanied by GIA report no. 6193449993 stating that the diamond is D color, Flawless, with Excellent Polish and Symmetry. Together with a letter from the GIA stating that the diamond has been determined to be Type IIa.

Sotheby's. Magnificent Jewels, New York, 04 déc. 2018, 10:00 AM