The Claddagh ring (Irish: fáinne Chladaigh) is a traditional Irish ring given which represents love, loyalty, and friendship (the hands represent friendship; the heart represents love; and the crown represents loyalty). Any fool can buy a diamond.
The Irish claddagh ring. The symbols are said to correspond to the qualities of love (heart), friendship (hands), and loyalty (crown). Meant as a friendship ring, engagement ring, or wedding ring depending on which finger and hand you wear it on.