When looking at wedding rings, I found that a 4 mm seemed to be a hard size to find.  Most rings for women seem to be around a 3mm or the unisex 6 or 7 mm.  This ring is a comfortable width that looks nice and I'm very pleased with the quality.

Other sites wanted a lot more and most didn't even offer this 4 mm comfort fit.

The size 7 I was fitted for in a jewelry store fits great.  However, when your hand is very cold (think winter temperatures) you do need to take care it doesn't slip off.