This is an authentic BULGARI 18K Yellow Gold B.Zero1 4 Band Ring size 51 or 5.75. This magnificent 18 karat ring is 12mm wide and has four concentric links with the BVLGARI name engraved on both sides. This is an excellent ring with the classical elegance only from Bulgari! Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.