Color Takes Shape! Inspired by the twilight sky, deep purple Amethyst is set between two bluish-purple Iolite. The Princess cut Amethyst weighs .55 Carat. The Princess cut Iolite weigh .45 Carat Total Weight. Set in 14K yellow gold, our romantic ring measures approximately 1/4 inch in width and tapers down for comfort. This ring is available in sizes 6, 7 and 8.