细节
A SAPPHIRE AND DIAMOND RING
Set with a cushion-shaped sapphire weighing 16.96 carats, flanked by trapeze-cut diamonds, mounted in 18k white gold, ring size 5
Accompanied by report no. 58681 dated 1 March 2011 from the SSEF Swiss Gemmological Institute stating that the 16.96 carat sapphire is of Burma origin, with no indications of heating
Also accompanied by report no. GRS2000-12048 dated 6 December 2000 from the Gem Research Swiss Lab stating that the 16.96 carat sapphire is of Burma (Myanmar) origin, with no indication of thermal treatment