A rare Art Deco chloromelanite jade and white gold bracelet, by Jean Fouquet. Photo: Christie's Images Ltd 2013

Designed as a series of octagonal-shaped chloromelanite jade open plaques, joined by sculpted 18k white gold links, mounted in 18k white gold, circa 1925, 6½ ins., with French assay marks and maker’s mark (indistinct). Signed Jean Fouquet. Estimate:  $80,000 – $100,000

Christie's. MAGNIFICENT JEWELS. 15 October 2013. New York, Rockefeller Plaza.