Caperci 8mm Comfort Fit Groove Cubic Zirconia Diamond Black Tungsten Men's Wedding Band Ring Size 8-13 Speak your vows softly as you present him with this handsome black tungsten diamond-accent cubic zirconia inlay wedding band. Band width: 8mm. Size 8-13 Fashioned in sleek, durable tungsten, this 8.0mm wide style showcases a sparkling diamond accent in the center of a diamond-cut groove that encircles the band. Caperci Tungsten Rings is one of the most well known and respected designers of tungsten rings in the World Please note, Black Tungsten Carbide rings are very durable, but can be scratched All Tungsten rings come with a Caperci Gift Box.