Spaced Duo Diamond Wedding Ring With its dazzling display of refined cobalt ring, tungsten ring, or ceramic ring, and brushed/polished gold with sparkling diamonds, this 7mm Spaced Duo Diamond Wedding Ring for Men is an exquisite piece of jewelry for the discerning gent. Adorned with six diamonds for a total carat weight of 0.12ct, it is available in yellow, white or rose gold, and 10kt, 14kt and 18kt options.� Make a statement with the larger 9mm and 11mm widths.