This is an authentic CARTIER 18K Pink Gold Black Onyx Diamond SM Amulette de Cartier Pendant Necklace. This stunning necklace features a 18 karat pink gold with a black onyx pendant set with a diamond weighing approximately .09 total carat weight. This pendant features a hidden closure that opens at the bail. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.