A jadeite and diamond pendent necklace. Photo Christie's Image Ltd 2014

Suspending a carved jadeite ruyi of brilliant emerald green colour and high translucency, to the marquise, pear and brilliant-cut diamond surmount, joined to the length adjustable black cord, mounted in 18k white gold, ruyi approximately 25.5 x 30.2 x 5.9 mm, 62.5 cm long. Estimate HK$4,000,000 – HK$6,000,000 ($518,558 - $777,838)

Accompanied by report no. KJ84841 dated 21 March 2014 from Hong Kong Jade & Stone Laboratory stating that the ruyi is natural jadeite and no polymer is detected.

Christie's. HONG KONG MAGNIFICENT JEWELS, 27 May 2014. Convention Hall - http://www.christies.com/