This is an authentic MIKIMOTO Platinum Diamond Akoya Cultured Pearl 8-8.5mm Cocktail Ring 50 5.25. The ring is crafted of platinum and features a 8-8.5mm white Akoya cultured pearl in a stylized setting set with approximately .30 total carat weight. Follow this item for alerts. Mikimoto is a registered trademark of Mikimoto. FASHIONPHILE is not affiliated with Mikimoto.