Follow up:
I bought a piece of jewelry for my Sweetie not too long ago, and on a whim got to talking with the jeweler (who is a friend) about the ring. He has this micro welder and he put it back together.
I worked on the trim with some flitz and it held together and looks pretty decent. There are sanding marks from the previous paint jobs which the flitz wouldn't touch, but the stainless looks pretty good.
K