This is an authentic CARTIER Platinum Diamond .18ct Etincelle De Cartier Solitaire Engagement Ring size 47 or 4. This ring is crafted of platinum and features a round brilliant cut diamond weighing approximately 0.18 carats. The ring also features a diamond accented band weighing approximately 0.10 carats making the rings combined total carat weight 0.28 carats. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.