Platinum, 18 Karat Gold, Emerald and Diamond 'Trefoil' Brooch, Mounted by Cartier - Photo Sotheby's

Set with three cabochon emeralds weighing a total of approximately 120.00 carats, framed and accented by numerous round diamonds weighing approximately 7.75 carats, signed Monture Cartier, numbered N5079, with French assay and workshop marks. Estimate: 40,000 - 60,000 USD - LOT SOLD. 140,500 USD

Sotheby's. Magnificent Jewels from the Collection of Mrs. Charles Wrightsman. New York | 05 Dec 2012 www.sothebys.com