Carved Line Pattern Diamond Wedding Ring This 7mm Carved Line Pattern Diamond Wedding Ring features a striking combination of polished tungsten ring, ceramic ring, or cobalt ring with�brushed gold, and square set diamond. The diamond sits in a two-tone gold band for maximum effect, and has a total carat weight of 0.2ct or 0.05ct. The insert is available in yellow, white or rose gold. This ring comes in 10kt, 14kt and 18kt options, and 9mm or 11mm widths.