6MM Satin Cobalt Rose Cut Black Diamond Ring*Alternative metal bands cannot be sized. All of our alternative metal bands come with a sizing warranty. If you loose or gain weight, simply bring it back to John Thomas and we will get you the same band in a different size.* This rose cut diamond is stunning against the satin cobalt band. The width of this band is 6MM. Add the perfect touch and remind yourself of your commitment. See just how stunning this ring is at John Thomas Jewelers. We are a