Item #: 1189342 Year: 1998 This is an authentic CARTIER 18K White Gold Diamond .33ct Louis Cartier Engagement Ring 47 4. The ring is crafted of 18 karat white gold and features a single round brilliant cut diamond weighing approximately .33 carats, with SI1 clarity and G color. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.