These Trinity knot earrings are crafted in sterling silver and are encrusted with marcasite along the Celtic knotwork. Marcasite is a light crystal with a bright metallic finish and adds a unique metallic sparkle to the earrings. The Trinity knot is one of the most recognisable symbols of Celtic culture. It is known as a variation of Celtic Knot which represents the Holy Trinity. With no beginning and no end, the Trinity Knot represents eternal life and never-ending love.