18 karat gold, sapphire, ruby and diamond brooch, France. Photo courtesy Sotheby's.

The foliate brooch of flexible design, set with cabochon and cushion-cut sapphires accented by round rubies, the stem further set with round diamonds weighing approximately .30 carat, gross weight approximately 27 dwts, with French assay and maker's marks. Estimation 25,000 — 35,000 USD

PROPERTY FROM THE HOUDRY FAMILY COLLECTION, FRANCE

Bearing a maker's mark for Davière, one of René Boivin's most well-known workshops, this brooch is similar in design to the iconic 'feuille' brooch, which was first exhibited at the 1937 Exposition de Paris; this 1937 design is illustrated in René Boivin: Jeweller by Françoise Cailles, page 237.

Sotheby's. Magnificent Jewels. New York | 11 Dec 2013 - www.sothebys.com