Women's 2.0 Ctw Oval Amethyst & Round Peridot 10KT Gold Flower Stud Earrings. These earrings are approximately 12.8mm in width. Featuring 10 beautiful oval cut amethyst gemstones with a total approximate carat weight of 2.0 ctw. These earrings also feature 2 round cut peridot gemstones with a total approximate carat weight of 0.20 ctw.