18 Karat Gold, Amethyst and Diamond Necklace-Brooch Combination, David Webb - photo Sotheby's
The pendant-brooch centered by a fancy-shaped amethyst accented by 12 round diamonds weighing approximately 1.50 carats, within hammered gold surrounds and suspended from a textured gold openwork chain, gross weight approximately 231 dwts, length 16¾ inches, both pieces signed Webb; pendant detachable. Estimation: 30,000 - 50,000 USD
Sotheby's. Important Jewels. New York | 07 févr. 2013 www.sothebys.com