A SAPPHIRE AND DIAMOND RING, set with an oval-shaped sapphire stated to weigh 3.50 carats, framed by a double-border of brilliant-cut diamonds, to brilliant-cut diamond shoulders, mounted in platinum, French assay mark, ring size M½ Accompanied by a certificate from Japan Gemmological Science Institute, numbered PA-0893, stating that the natural sapphire weighing 3.50 carats, origin Sri Lanka. Additionally stating that the diamond weigh 1.03 carats in total