This is an authentic BULGARI 18K White Gold Black Onyx BVLGARI BVLGARI Single Stud Earring. The earring is crafted of 18 karat white gold and features a black onyx stone inlay framed by the engraved BVLGARI logo. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.