This lovely jewelry set is made up of purple amethyst and would make a great birthstone piece. The chunky necklace is made up of 10 millimeter smooth round beads. They are hand knotted between for added security and elegance. The 20 inch long necklace closes with a silvertone magnetic clasp. The earrings feature 1 10 millimeter amethyst round bead. They measure about 1 inch long in total including the silvertone hooks.