A SINGLE-STONE SAPPHIRE RING

細節
A SINGLE-STONE SAPPHIRE RING
Set with an oval-cut sapphire weighing 20.44 carats to the triangular-cut diamond shoulders and 18K white gold hoop
With certificate 31756 dated 2/4/1998 from the SSEF Swiss Gemmological Institute stating that the sapphire is of Sri Lankan origin and shows indications of thermal treatment