This is an authentic MIKIMOTO 18K White Gold Akoya Pearl Diamond Amethyst Citrine Ring 50 5.5. The ring is crafted of 18 karat white gold and features a detailed milgrain band set with a single Akoya pearl, amethyst and citrine cabochons, and round brilliant cut diamonds weighing approximately .10 total carat weight. Follow this item for alerts. Mikimoto is a registered trademark of Mikimoto. FASHIONPHILE is not affiliated with Mikimoto.