SWAROVSKI ELEMENTS 6mm 5040 Briolette bead. These crystal beads have 48 precision cut facets over their doughnut shaped body. They are available in Crystal AB, Tanzanite & Jet and also in a 6mm size. The hole is approximately 1.1mm in size. These 6mm Swarovski Crystal Briolette beads sparkle intensely and look fabulous in bracelets. Crystal AB is crystal with a coating on one half that reflects light with a yellow and blue tinge, like the surface of a bubble.