rings!

My third platinum ring

I've seen alot of these rings for sale saying they're viking/middle age wedding rings but I have no idea what the symbols are or if they're authentic or not. I'd love to buy some but since I'm not so sure about them being genuine I'd love others opinions.

So I exclusively hunt on beaches here in NY. I mainly get a lot of loose change, but I would like to get some rings now and then. My issue is that on the AT pro, the range for gold (50-60) is also the same range for pull tabs. As you can imagine, there are thousands of pull tabs on the beach...