SWAROVSKI ELEMENTS 6mm 5328 XILION bead. The XILION Bead is the most popular bead shape that we sell, it replaces the 5301 Bicone bead which Swarovski have transformed into the new patented 5328 shape: It features 50% more facets for extra brilliance and light refraction, a smoother equator for increased comfort during wearing and rounded hole edges?to protect stringing materials. The hole size is approximately 1.1mm, they are available in 40 different colours. 5328 is also available in 3mm, 4mm, 5mm & 8mm. These 6mm Swarovski crystal beads are incredibly versatile and work well in almost any project they are ideal for necklaces. To give an idea of the difference between the sizes please see the additional image showing all the sizes photographed together. Crystal is a clear transparent, colourless shade. Also available in 3mm, 4mm, 5mm and 8mm.