A sapphire and diamond three-stone ring: the central, cushion-shaped sapphire approximately 12mm long x 0.6mm wide x 5.3mm deep, estimated to weigh 5.5cts in four claw setting, between round brilliant-cut diamonds, total diamond weight approximately 0.50ct, the shank stamped '18K', 6.4gms gross weight, ring size O 1/2.