Yellow gold ring 750 thousandths, presenting in its center a rectangular cushion-cut amethyst of approx. 5 ct, in a surround of thirty-one rose-cut diamonds (ring slightly twisted). Late 19th century. Amethyst size: 13.2 x 10.7 x 6.6 mm Total estimated diamond weight: 0.05 ct Finger: 50 - Gross weight: 5.5 g