Dome ring in 750 thousandths pink gold and 950 thousandths platinum, centered on an oval-cut sapphire weighing approx. 4 ct (slight chipping) in a surround of fifteen half-cut diamonds, openwork setting. Moroccan work, 1950s. Sapphire size: 9.2 x 7.2 x 7.8 mm Total estimated diamond weight: 0.50 ct Finger: 54 - Gross weight: 9.7 g