Christie's, Hong Kong, November 2007

Lot 204 A Sapphire and Diamond Ring

Set with an oval-shaped sapphire, weighing 11.63 carats, to the half-moon diamond shoulders, mounted in platinum, ring size 6½

Accompanied by report no. 070704 dated 3 July 2006 from the GRS Gem Research Swisslab stating the sapphire is natural with no indication of thermal treatment