Platinum, emerald and  diamond Devant de Corsage, France, circa 1925.  photo Sotheby's

Designed as a graduated articulated swag supporting cabochon emerald drops weighing approximately 12.00 carats, the top set with an emerald-cut emerald weighing approximately 2.25 carats, and a square emerald-cut emerald weighing approximately 1.00 carat, spaced by 2 old European-cut diamonds weighing approximately 1.50 and 1.00 carats, set throughout with old European-cut, single-cut and rose-cut diamonds weighing a total of approximately 18.00 carats, French assay marks. ESTIMATE 30,000-50,000 USD

Sotheby's. Important Jewels, New York | 09 Feb 2012 www.sothebys.com