Details:The coin is casted from an authentic ancient Greek coin used in Afghanistan thousands of years ago. The ring is made of 925 sterling silver with a slightly oxidized coin. Tom Wood signets are made out of solid silver and gold, enabling you to engrave the ring with your own hidden message inside the ring or on the top plate. Make the ring unique and private, like the signet rings once were used. The top plate comes in two different sizes, a large one for men (16.5 x 16.5 mm) and a smaller one for women (15 x 15 mm). The signet rings are available in the traditional ring size of 46-56 (women) and 58-66 (men).