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.
The skull bead, crafted in brilliant, precision-faceted Swarovski crystal, is a surprising component that is certain to awaken inspiration and spur conversation whenever and wherever it is seen. Often associated with dark imagery, the play of light in these shining skull beads creates an intriguing contrast, making the Swarovski crystal skull ideal for a range of statement and artistic jewelry designs. The skull bead is drilled vertically.