Black Tungsten Carbide Laser Engraved Celtic Ring "First introduced by Titanium Kay, this black tungsten carbide ring is for those who need ultimate uniqueness. We are the pioneer in manufacturing black tungsten jewelry in the entire jewelry industry. This ring is made in comfort fit design. You might find Celtic pattern in many other accessories, but they will not beat the excellence of this engraved ring. The metallic color of the pattern, combined with the black ring, create an outstanding combination. "