The lettering on the coin looks almost Thai, but couldn't find a match on Numista.com. It could have been a piece made to look like a coin, but isn't. Hopfully one of the coin gurus will chime in and help. Great first!
Wow, that's almost good as finding a diamond ring for your first ring. Congratulations. No clue on the coin. You might also want to post under Coins.
Also if you have Google Googles for your smart phone (I don't know if it's available for I phone and Android. The guy I know who has it has Android.) your might get a hit.
Dang! What a memorable first ring. I also think that it Looks like a roman coin. I think you scratched off three or four items from Your bucket list with that one.