This is an authentic BULGARI 18K White Gold Ceramic Diamond B.Zero1 Essential Band Ring Black 55 7.25. The ring is crafted of 18 karat white gold and black ceramic, and features the BVLGARI logo engraved along the band. The ring also features a solitaire round brilliant cut diamond weighing approximately .05 carats. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.