Item Number: H20-A1131CY
Swarovski's AB effect, named for aurora borealis (the northern lights), is a term for crystal stones that have a highly iridescent surface. Created by Swarovski in 1955 in collaboration with Christian Dior, the effect is achieved by vapor blasting the facets of the lower part of the crystals with an invisible, micro-thin metal sheet. Crystal beads have foil backing for added sparkle. The "P" in the color name stands for "Protective Layer," which is a lacquer system applied over the crystal AB effect. The lacquer is designed to protect the effects from scratches, fingerprints and other damage and also helps to prevent moisture that can lead to corrosion (example: from perspiration).