Amethyst: 12mm; 14K yellow gold; 22-23" adjustable length; drop: 3.25"; Lobster clasp; Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care; Photo may have been enlarged and/or enhanced; All gemstone carat weights (tcw) are approximate; variance may be 0.05 carat.; Amethyst is a February birthstone; Made in USA