Gold ring #1100372(Au-R+PRh-W)_DI+SA, Red Gold 585°, Rhodium (Plating) , Diamonds , Sapphire . Stone: Diamonds (0,02Ct), Sapphire (0,307Ct) Rings are made of Solid 585° Gold. Genuine 585° Gold, Stamped 585. All Jewelry is marked “Common Control Mark” (CCM) according Hallmarking Convention