14kt Milgrain Shamrock Pendant. This Shamrock Pendant on a Chain is an exceptional piece of Jewelry and an excellent gift for someone special in your life. 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 is given for Luck. The Shamrock is modern looking with numerous curves and the tips of the shamrock turned in to represent hearts. The Leafs feature the trinity in the hearts. This pendent will showcase the excellent design that is inspired from the many manuscripts that can be found in the Book of Kells. Nickle Size. 18 inch Chain.