I know this may not matter to some people and it doesnt really to me, but is it uncommon for the bride and grooms rings to not match? I have a 1/2 carat princess cut solitaire ring set in white gold. The ring Im interested in is 5 small diamonds in white gold, while my fiance likes the looks of the beveled edge tungsten carbide with one or more diamonds. His would be a darker silver/ black color. Thanks!