This incredible black 8mm comfort-fit Cobalt band features a hammered finish with a high-polished center cut down the middle and bold round edges. Crafted in satin-finished and polished black ion-plated cobalt, this dramatic 6.0mm-wide bevel-edged style says it all. Custom-made to fit his ring size.
Cobalt bands cannot be resized after purchase. 4x harder than Platinum, 5x harder than Gold and 7x harder than Silver: Cobalt is the ultimate contemporary metal. Because it is also hypoallergenic, scratch resistant and biocompatible, it has been used heavily in medical applications. Cobalt, unlike Tungsten, is shatter proof.