This ring is a cushion-cut genuine amethyst stone measuring 9x7mm - channel set in this ring. The ring is sterling silver, hallmarked and stamped 925, and has an elegant S decorative design on either side of the stone. On the top & bottom of the ring there are fan-like cutout designs, and on either side of the 4MM shank there is a etched triangle design. Just plain exquisite! This picture is enlarged to show detail.