Blue chalcedony, ruby, sapphire and diamond brooch/pendant, Suzanne Belperron, circa 1940

The bombé segment of blue chalcedony collet-set with an oval ruby, 5 round and oval sapphires, and old-mine and and single-cut diamonds set singly and in clusters, mounted in 18 karat gold, with retractable pendant loop, maker's mark for Groene & Darde, French assay marks. Estimate 10,000--150,000 USD - Lot Sold 15,000 USD 

Sotheby's. Magnificent Jewels. 09 Dec 08. New York photos courtesy Sotheby's. www.sothebys.com