Year: 2021 This is an authentic BULGARI 18K Rose Gold B.Zero1 Five-Band Anniversary Ring size 53 or 6.25. The ring is crafted of 18 karat yellow gold and features a B.Zero1 barrel motif engraved with the BVLGARI logo on either size. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.