细节
AN IMPORTANT SINGLE-STONE SAPPHIRE RING
Set with a cushion-shaped sapphire weighing 4.20 carats, with triangular-cut diamond shoulders, to the 18K gold hoop
With certificate CS27427 dated 15/11/89 from the American Gemological Laboratories stating that the origin of this sapphire would be classified as Kashmir, with no gemological evidence of heat induced appearance modification present