Swarovski Elements Crystal Bicone beads are the most popular bead style in the Swarovski line, and with good reason. These shimmering beads come in the widest range of colors and effects as well as seven versatile sizes. Our inventory of 5301 style Crystal Bicone beads in 3mm to 10mm sizes is now available with the brilliant XILION cut, identified with style number 5328. This cut increases the number of reflective surfaces on the bicone shape without changing the profile or dimensions of the bead. Learn all about Swarovski Elements in our Swarovski Elements Q and A .