Cabochon ruby and diamond ring. JAR, Paris. Photo Sotheby's

The sugarloaf cabochon ruby weighing approximately 16.30 carats, set within a diamond-set surround, with diamond-set shank, mounted in platinum, size 3¼, signed JAR, Paris, French assay mark. With signed box with monogram LMS. Est. 150,000—200,000 USD - Lot Sold.  Hammer Price with Buyer's Premium:  410,500 USD

NOTE: Accompanied by AGL report no. CS 40590 stating that the ruby is of Burmese origin; Heat enhancement: None.

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