This is an authentic BULGARI 18K Yellow Gold Mother of Pearl Black Onyx BVLGARI BVLGARI Ring 50 5.25. The ring is crafted of 18 karat yellow gold and features a rotating center disk with black onyx on one side and mother of pearl on other with BVLGARI logo engraved on both sides. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.