18 Karat Gold and Diamond Necklace, René Boivin - Sotheby's

Composed of overlapping circular links, the front decorated with small florets set with round diamonds weighing approximately 5.40 carats, gross weight approximately 108 dwts, internal circumference 11½ inches, with French assay and workshop marks; circa 1950. Estimate: 20,000 - 30,000 USD

Sotheby's. Magnificent Jewels. New York | 17 Apr 2013 www.sothebys.com