A Belle Epoque diamond pendant-brooch. Photo Christie's Image Ltd 2014

Designed as a flexible tassel of circular and square-cut diamonds to the kite-shaped diamond surmount with marquise-shaped diamond foliate surround, suspended from a fine link chain, can be worn as a brooch, 1920s, chain 42.5 cm, pendant 6.0 cm, with French assay mark for platinum (2). Estimate CHF30,000 – CHF40,000 ($34,358 - $45,811)

Christie's. GENEVA MAGNIFICENT JEWELS. 14 May 2014, Geneva -http://www.christies.com/