This is an authentic CARTIER 18K Yellow Gold Blue Sapphire Ellipse Oval Cut Ring size 57 8. This stunning ring is crafted of 18 karat yellow gold and features a blue oval cut sapphire on a polished gold band. This is an elegant ring with the classic style of Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.