This unique Cobalt 10mm comfort-fit satin-finished band features high polished horizontal grooves and a high polished beveled edge. Also available in platinum, white or yellow gold.
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.