Sapphire and diamond ring, Van Cleef & Arpels, circa 1935

The cushion-shaped sapphire weighing 10.04 carats, within a geometric frame set with 28 baguette diamonds weighing approximately 1.95 carats, mounted in platinum, size 5, signed Van Cleef & Arpels. Est. 50,000—60,000 USD. Lot sold 80,500 USD

NOTE: Accompanied by AGTA report no. 93004012 stating that the sapphire is of Burmese origin, no indications of heating.

Sotheby's. Magnificent Jewels. 23 Apr 09. New York www.sothebys.com Photo courtesy Sotheby's