Year: 2014 This is an authentic BULGARI 18K Rose Gold Black Ceramic B.Zero1 Four-Band Ring size 53 or 6.25. The ring is crafted of 18 karat rose gold and features a black ceramic spiral motif framed by the BVLGARI logo on either side. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.