Year: 2019 This is an authentic BULGARI 18K Rose White Gold Diamond Labyrinth B.Zero1 Four-Band Ring 52 6. The ring is crafted of 18 karat rose and white gold, and features a spiral barrel motif band set with round brilliant cut diamonds weighing approximately .56 total carat weight. Follow this item for alerts. Bulgari is a registered trademark of Bulgari. FASHIONPHILE is not affiliated with Bulgari.