Platinum, Sapphire And Diamond Brooch, Georges Thibault, France, Circa 1925. Photo Sotheby's
The bar brooch set in the center with a square emerald-cut diamond weighing approximately 1.25 carats, framed by buff-topped sapphires, bordered by round and old European-cut diamonds weighing approximately 3.20 carats, partial maker's mark, French assay marks. Estimate 12,000-15,000 USD
Sotheby's. Magnificent Jewels, New York 20 september 2011 www.sothebys.com
