Ring in 750 thousandths white gold and 850 thousandths platinum, set with an oval-cut sapphire, approx. 4 ct, in a surround of sixteen modern brilliant-cut diamonds. Modern work. Sapphire size: 10.2 x 7.6 x 6.8 mm Total estimated diamond weight: 1.60 ct Finger size : 55.5 Gross weight : 10,2 g