This is an authentic BULGARI 18K Rose Gold Black Ceramic B.Zero1 Four-Band Ring size 48 or 4.5. The ring is crafted of 18 karat rose gold and features the iconic B.Zero1 spiral barrel motif with a black ceramic center. This is a stunning ring with the chic style of Bulgari! Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.