Pompadour ring in platinum 850 thousandths, centered on an oval-cut sapphire weighing approx. 6.50 ct (chips) in a setting of sixteen old-cut diamonds weighing approx. 0.08 ct each. French work, early 20th century. Sapphire size: 15 x 10.7 x 5.5 mm Total estimated diamond weight: 1.30 ct Finger: 52 - Gross weight: 6.5 g