My fiance just proposed to me tonight and presented me with a diamond ring from Kay. When we were shopping, all the rings they had at the store were a size 6, I wear a size 10 (tall girl hands). I was so happy with the ring when I first put it on and after a few hours I noticed that the bottom of the shank was REALLY skinny and uneven in thickness. It's about the same thickness as a dime. (about 1mm, right?) and the enhancer band that he purchased to match it is even thinner (and also uneven) I am taking the ring back tomorrow for them to fix it, but my question is how thick should the shank be? I want to have a little ammo in case the try and tell me the ring is fine even though it clear is not.