This incredible satin-finished 7.5mm comfort-fit Cobalt band features a high-polished beveled edge and center cut between three round ideal-cut black diamonds. Approximate total diamond carat weight is .20ct.
All Benchmark rings come with a lifetime guarantee.
4x harder than Platinum, 5x harder than Gold and 7x harder than Silver: Cobalt is the ultimate contemporary metal. Benchmark’s naturally inert Cobalt contains a special blend of Cobalt and other alloys that exude extremely high luster and reliable strength. Because it is also hypoallergenic, scratch resistant and biocompatible, it has been used heavily in medical applications. Cobalt, unlike Tungsten, is shatter proof.