Pompadour ring in 18k white gold and 850 thousandths platinum, set with an oval-cut sapphire, approx. 6 ct (minor chipping), in a surround of twenty old-cut brilliant-cut diamonds. Total estimated diamond weight: 0.40 ct Sapphire size: 13.1 x 9.4 x 6.5 mm Finger: 54 - Gross weight: 6.2 g Sapphire certified by the GemParis laboratory as being of Sri Lankan (formerly Ceylon) origin and unheated (S1).