This is an authentic BULGARI 18K Yellow Gold B.Zero1 Five-Band Anniversary Ring size 51 or 5.75. The ring is composed of 18 karat yellow gold and features the iconic barrel motif with the engraved Bulgari logo. This is an iconic ring with the modern elegance of Bulgari! Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.