Gold Ring Found in Eastern Europe

My husband found this ring in the early 1990's while digging in a garden in what today is Bosnia & Herzegovina. We have always been curious to find out information about it including how old it is or if it's worth anything.

It was found not even a foot deep and it weighs a little over 13 grams. It has two stamps on it, one I'm fairly certain says "585" and the other I can't tell what it is numbers, letters or a symbol.

I am curious to know about the lion on the front and if that means anything. I thought about taking it into a local jewelry store but I'm not sure if people do that or if they would look at me odd for bringing this in. Any advice you can offer would be greatly appreciated. Thanks in advance!