Swarovski crystal is the ultimate crystal for the expensive bead look with out the high price.They are know world wide for there outstanding sparkle and brilliance.These crystals are all machine faceted for perfection .Swarovski offers a wide range of colors and special coatings.Special coatings are bonded chemically to the outer surface of the beads for a more brilliant effect.Aurora Borealis,better known as"AB",is one of the more popular coatings that gives off a rainbow-like effect.The special effect and special coating of each beads are permanent.Swarovski crystal also contains approximately 32% lead.Full lead crystals must contain above 30% lead oxide content in order to be consider full lead crystal.ALL YOUR CRYSTAL NEEDS!-SUPPLIES-AND-CRAFTS