Amethyst cameo ring 19th century Oval-shaped ring in yellow gold 585 ‰, the setting is embellished with six segments engraved with black-enameled geometric motifs and it is centered with an amethyst cameo representing a woman's head with long hair, front-on. Work from the mid-19th century PB : 6,91 g - TDD : 50 Ring plate dimensions: 2 x 1.5 cm