Platinum, 11.62 carats Burmese Sapphire and Diamond Ring, Harry Winston. Estimate 150,000 — 200,000 USD . Photo: Sotheby's.

Centering an emerald-cut sapphire weighing 11.62 carats, framed by marquise-shaped diamonds weighing approximately 9.00 carats, size 6½, with maker's mark for Jacques Timey.

Accompanied by AGL report no. CS 68607 stating that the sapphire is of Burmese origin, with no indications of heating.

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