This is an authentic BULGARI 18K Rose Gold Diamond Black Onyx 4mm Serpenti Viper Band Ring size 54 or 6.75. The ring is crafted of 18 karat rose gold and features a single scale motif set with polished black onyx and round brilliant cut diamonds, approximately .24 total carat weight. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.