Details
A SINGLE-STONE SAPPHIRE RING, BY RENE BOIVIN
Set with a cushion-shaped sapphire weighing 12.91 carats in a calibré-cut sapphire and circular-cut diamond mount to the bifurcated hoop, size 6, with French assay mark, in a Boivin brown suede fitted case
Signed by René Boivin
With certificate 31770 dated 6/4/1998 from the SSEF Swiss Gemmological Institute stating that the sapphire is of Sri Lankan origin and shows no indications of thermal treatment
Set with a cushion-shaped sapphire weighing 12.91 carats in a calibré-cut sapphire and circular-cut diamond mount to the bifurcated hoop, size 6, with French assay mark, in a Boivin brown suede fitted case
Signed by René Boivin
With certificate 31770 dated 6/4/1998 from the SSEF Swiss Gemmological Institute stating that the sapphire is of Sri Lankan origin and shows no indications of thermal treatment