SAN DIEGO | Silver Tungsten Ring, Black & Silver Carbon Fiber Inlay, BeveledBlack and Silver Carbon Fiber Inlaid Tungsten Ring. This sophisticated and stylish, beveled edged Tungsten Carbide ring with an inlay of black and silver Carbon Fiber with a durable resin applied protect it. This luxury tungsten carbide ring is 8mm wide, with a polished finish and is a true statement piece. The ring is a comfort fit so if you are looking for a very comfortable ring that will stand out this is the ring for you. Tungsten Carbide is