Sterling Silver Amethyst Cushion Cut Diamond Pendant Necklace sterling silver necklace featuring cushion cut amethyst and diamond accent pendant 18"Box chain with spring-ring clasp Gemstones may have been treated to improve their appearance or durability and may require special care. all our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free Amethyst is February's Birthstone Imported