AMETHYST, DIAMOND AND BLACK DIAMOND RING Containing one oval shape cabochon cut amethyst measuring approximately 18.50 x 12.90 mm, 38 round brilliant cut diamonds weighing approximately 1.20 carats total and 26 round mixed cut black diamonds (origin of color not tested). Mounted in white gold with black rhodium detail. Stamp: 18K 750 SUAREZ (partially obscured hallmarks). 16.35 dwt.