Puzzled

I made a puzzle ring. Silver and black diamonds.
Everything that could possibly go wrong went wrong. And right at the end when it was polished and done, one of the diamonds came out and disappeared into that place where things that don't want to be found run away to. So I had to get another one and have it set again. Whew. Not one of my favourite pieces to make but certainly satisfying when the pieces spin around the ring effortlessly.