Jadeite, diamond, enamel and onyx pendant, circa 1925, Boucheron. Photo Sotheby's

Of Art Deco design, the translucent jadeite plaque of emerald green colour suffused with white patches; decorated with a Chinese calligraphy shou (壽) set with brilliant-cut diamonds, symbolising longevity, surmounted by brilliant-cut diamonds, black enamel and onyx-set links, mounted in platinum, signed. Plaque approximately 43.16 x 32.56 x 7.95mm. Estimate 130,000 — 170,000 HKD - Lot sold. 162,500 HKD

Accompanied by Hong Kong Jade & Stone Laboratory certificate numbered SJ 31466, dated 26 July 2011, stating that the jadeite is natural, known in the trade as "A Jade".