This is an authentic CARTIER 18K Yellow Gold Diamond .57ct C De Cartier Solitaire Ring 51 5.75. The ring is crafted of 18 karat yellow gold and features a round brilliant cut diamond weighing .57 carats, with F color and VS1 clarity. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.