My first Claddagh! Sure came as a surprise as I was in the middle of the woods taking a walk with the wife & daughter. 2 inches deep and rang up as a quarter on the Ace 250. Size 11 and fits perfectly! Don't know how old it is? Thanks for looking!
Very, very nice find. I wear a claddagh and the one you found is identical to mine. If you are married and intend to wear it, turn it around so the point of the bottom of the heart is facing towards your knuckle.
The story of the Claddagh Ring is very interesting:
http://www.claddaghring.com/How-to-wear-claddagh-rings-a/122.htm