Thank you for the reply, Ladies! My name is Allen and I appreciate your responses. Well, that's the conundrum! There are no identifying names or numerals on the back! I will have to double-check. It's in my safe right now. I will check again sometime but as far as I can remember, no marks. A conundrum indeed! ;-)

But! I have an idea on what to do with it if I don't end up finding the owner. As a KA, I know how valuable and meaningful that jewel is so I can't simply give it away or sell it to someone or somewhere. Does that make sense at all?