Post # 16
to make a ring bigger, if it is going up half a size or more it is cut at the back of the shank and another piece of gold is added, and soldered into place and then it is filed and polished so that you can’t see where the piece was added, with a plain shank if it’s only going up like 1/4 of a size they can sometimes just stretch it with a special tool.
Post # 17
Another update: I took every one’s advice and resized my ring. I am happy with the result.