Swarovski Amethyst Shimmer: This iridescent coating on a Swarovski amethyst crystal provides stunning shimmer from every angle. Amethyst Shimmer 2x: Most coatings are on just one side of an item / bead. Beads with "2x" in the color name have the coating on both halves of the bead -- the entire bead -- rather than just half the bead.
