A shamrock is a young sprig, used as a symbol of Ireland. Saint Patrick, Ireland's patron saint is said to have used it as a metaphor for the Christian Holy Trinity. The name shamrock comes from Irish seamróg and simply means "young clover".
Ireland Necklace, Irish Enameled Shamrock Symbol
Each item begins as a piece of sheet metal, copper, bronze, brass or nickel. After a pattern is transferred to the metal, the piece is etched in a salt-water solution. Each piece is hand cut, sanded, and polished. A patina may be applied or it may be hand painted with dye oxide. A clear polymer coating is applied