This is an authenticCARTIER 18K White Gold Amethyst C De Cartier Pendant Necklace. The necklace is crafted of 18 karat white gold and features a pendant set with a round brilliant cut amethyst stone in the signature C de Cartier setting, and a link chain finished with a lobster clasp. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.