This 8mm tungsten carbide ring is handmade and vintage. The ring is a band style with a domed polish and a shining blue-green opal. The ring is tungsten and has a metal purity of 999. The ring is not signed and is not customizable. The ring is not sizable and has no secondary stone. The ring is not personalized and has no seller warranty. The ring is not part of a set and is not a wedding band.