Solvar Rhodium Enamel Shamrock Stud Earrings feature a rhodium plated base metal with a height of .31 inches and a width of .35 inches, weighing 1.47 grams. By Solvar, these earrings are made in Ireland, and come with a size and fit guide. The shamrock, a trefoil-shaped plant from the clover family native to Ireland, is an emblem of St Patrick. According to Irish folklore, the Three Leaves of the shamrock represent the doctrine of the Holy Trinity. Still today, the shamrock is considered a lucky symbol.