Lot 169. A 4.60 carats Russia demantoid garnet and diamond ring, by Tiffany & Co. Estimate USD 50,000 - USD 70,000. © Christie’s Images Limited 2017.

Set with a circular-cut demantoid garnet, weighing approximately 4.60 carats, flanked on either side by a pear-shaped diamond, ring size 6, mounted in platinum and 18k gold. Signed Tiffany & Co., no. S00969

Accompanied by report no. CS 1076798 dated 14 July 2016 from the AGL American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of this demantoid garnet would be classified as Russia (Ural Mountains). The color of demantoid may be modified through a relatively low temperature heating process. To date, it is not possible to make a definitive determination as to whether this stone is natural color or heated in this manner

Christie's. Magnificent Jewels, 26 April 2017, New York, Rockefeller Center