Sterling Silver Amethyst Bezel Set Pendant Necklace. 2.65 Carat Total Gemstone Weight. This pendant comes with an 18 inch sterling silver chain as shown. Alternate chain length, weight, or style options are available. This immaculate pendant necklace showcases a faceted cushion cut amethyst, providing a regal purple hue. The lovely February birthstone is set in gleaming 925 sterling silver and topped with a delightful silver twist.