18K AMETHYST/DIAMOND RING: 18K yellow gold diamond ring featuring one amethyst gem. Amethyst is marquise mixed-cut and weighs approx. 6.40 Ct. There are also 26 round brilliant-cut diamonds, weighing in total approx. .75 Ct. Ring Size: 7.75. Total weight of ring is 9.0 grams. Sold with current Florida Diamond Appraisers appraisal for $3,850.