Paialco Jewelry Making DIY Beads White Crystal Quartz Strand Round (12MM) One strand of white clear crystal quartz beads, appr. 16 inches. This is a loose gemstone beads strand for jewelry diy making, cannot wear directly. Full drilled, hole size is 0.8mm for any beads &gt;4mm, hole size is 0.4mm for any beads&lt;4mm.