Tungsten Carbide 8MM Wedding Band Ring With Laser Etched Celtic Knot Design Tungsten Carbide 8MM Wedding Band Ring With Laser Etched Celtic Knot Design This Celtic design symbolizes never ending love The customs associated with the Claddagh ring were originated in the Irish fishing village of Claddagh Designs are older then 17th century. Genuine Tungsten Carbide (Cobalt Free) Beware of Imitated Replicas