18 Karat Gold, 26.18 carats Burmese  Sapphire, Emerald and Diamond Ring. Estimate 350,000 — 450,000 USD. Photo: Sotheby's.

Centering an emerald-cut sapphire weighing 26.18 carats, the mounting accented by round diamonds weighing approximately 4.50 carats, further decorated with round emeralds and sapphires, size 6¾, signed Van Cleef & Arpels, numbered N.Y. 3869.

Accompanied by GRS report no. GRS2013-057085 stating that the sapphire is of Burmese origin, with no indications of heating.

Sotheby's. Important Jewels, New York, 24 Sep 2015