Sotheby's, St. Moritz, February 1999 Lot 485 Sapphire and Diamond Ring 
Claw-set with cushion-shaped sapphire weighing 9.29 carats, on a pav set diamond ground, size 48
Accompanied by GRS report no. GRS 9811054 and SSEF Swiss Gemmological Institute report no. 34965 both stating that the sapphire is of Burmese origin, no indication of thermal treatment.
|