As I’m sure you can tell already, I have a penchant for celtic designs.  I just love the symbolism of the claddagh ring.
According to Wikipedia: “The Claddagh’s distinctive design features two hands (one male, one female) clasping a heart, and usually surmounted by a crown. The elements of this symbol are often said to correspond to the qualities of love (the heart), friendship (the hands), and loyalty (the crown).”

I also love the idea of interlocking rings worn as wedding rings.  To me, that adds to the symbolism: two lives coming together to make one.

Here are some images of sets I’ve actually cast.