Smokey Quartz AB Bicone Crystal Beads - 4mm-6mm. Highly faceted and hand-polished for sparkling clarity and shine in any of your handmade beaded jewelry, these cut glass Smokey Quartz AB Bicone Crystal Beads are a must-have addition to your beading supplies. Value-priced and perfect for adding an enchanting mystery to any project, you'll have plenty to bring out the best in your bracelets, earrings, necklaces, wine glass charms and everything else you string together. (48 pcs. per unit) 1mm hole.