Ring in yellow gold 750 thousandths and platinum 850 thousandths, set with an oval-cut purple sapphire approx. 1.40 ct (reported) in a surround of forty-six 8/8-cut diamonds, gadrooned setting. French work, 1950s. Sapphire size: 7.7 x 5.9 x 4.1 mmm Total estimated diamond weight: 0.50 ct Finger: 51 - Gross weight: 12.3 g