Swarovski innovations colours Fall/Winter 2018/19 - The Swarovski crystal XILION bicones 5328 are available in various colour and size. The Swarovski XILION Bicone 5328 is probably the most popular Swarovski crystal bead. The perfection of the XILION cut gives a very distinctive higher light reflection. The best crystal bead available on the market for all your jewellery project and more. A great addition to your beading supplies.