Sounds like you are describing a claddagh ring -- which is a heart, hands and a crown - -they are the celitc symbol for Love, Loyalty, and friendship
and they come in all metals - mine is white gold - but they come in silver or gold too...
Any jewelry store would sell them, and 100's of places on the webwould sell them as well -- (the direction you wear the heart tells of your status - point of the heart worn facing in, means your heart is not available, heart facing out, means your heart is avaolable)