A superb coloured diamond and diamond ring. Photo: Christie's Images Ltd., 2010

Set with a heart-shaped fancy vivid blue diamond weighing 5.01 carats, to the pavé-set diamond surround and bifurcated quarter-hoop, mounted in 18k white gold, ring size 5¾ - Estimate HK$35,000,000 - HK$55,000,000 Price Realized HK$36,500,000 ($4,705,054)

Accompanied by report no. 2115664272 dated 8 February 2010 from the Gemological Institute of America stating that the 5.01 carat diamond is fancy vivid blue, VS2 clarity

5.01克拉心形鮮彩藍色VS2鑽石鑽石戒指

Christie's. Jewels: The Hong Kong Sale. 1 June 2010. Hong Kong www.christies.com