An art deco ruby and diamond sautoir. Photo Christie's Image Ltd 2014

Designed as two strands of ruby beads linked by twelve circular and baguette-cut diamond geometric panels with square-cut diamond collet detail, detachable to be worn as four bracelets, 1920s, 82.5 cm, with French assay marks for platinum (4). Estimate CHF100,000 – CHF150,000 ($114,527 - $171,791)

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