Claddagh rings, which originated in the village of Claddagh, Ireland, take on specific meanings depending on how they are worn. The design involves two hands holding a heart and is topped with a crown. According to the Claddagh Ring Meaning website, "The heart of the Claddagh is recognized as a symbol for love, while the crown is a symbol of loyalty and the hands are representing the friendship element."
Place the Claddagh on the ring finger of your right hand with the heart facing outward. Wearing a Claddagh ring with the tip of the heart facing your fingernail signifies that you are presently not in a romantic relationship, but that you're interested in being in one.
Wear the Claddagh on the ring finger of your right hand with the heart facing inward. When a Claddagh ring is worn on the right hand with the heart pointed towards the body, it means that your heart belongs to someone and that you're "taken."
Put the Claddagh on your left finger with the heart facing inward towards you. When a Claddagh ring is worn this manner, it means you're married and that your heart is now joined together forever with the heart of another.