Emerald, pink sapphire and diamond ring

The emerald-cut emerald weighing approximately 6.75 carats, flanked by 2 cushion-shaped pink sapphires weighing approximately 3.50 carats, and 10 small round diamonds, mounted in 18 karat gold and platinum, size 6½.. Est. 10,000—15,000 USD. Lot sold 12,500 USD

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