Christie's, Hong Kong, November 2007

Lot 40 A Sapphire and Diamond Ring

Set with an oval-shaped sapphire, weighing 20.66 carats, within a brilliant-cut diamond surround, mounted in platinum, ring size 6

Accompanied by report no. 110173T dated 18 November 2005 from GRS Gem Research Swisslab stating that the sapphire is of Sri Lankan origin, with no indication of thermal treatment