I recently saw a ring setting I really liked in a local jewlery store for about 650. The stone in it was a smokey topaz. I was thinking of buying the ring and going to another jeweler and havinng the topaz removed and having a loose emerald I own put in it. I really like the setting, but would it be cheaper to have a setting made for my emerald? Also part of the reason, I like the ring is I want my emrald to be made into that shape.