This unique 8mm comfort-fit Cobalt band features a carbon fiber center inlay with high polished beveled round edges that is both sleek and subtle. Cobalt is 4x harder than Platinum, 5x harder than Gold and 7x harder than Silver. It is hypoallegenic, scratch resistant and shatter proof. This ring is also available in Black Titanium, Tungsten or Black Cobalt. If interested, please call for pricing.