Smoky Quartz Micro Faceted Rondelle Genuine Natural Beads Strand ~3.7mm 13" Smokey Quartz Faceted Rondelle Bead Small size, about 3.7mm, sizes vary slightly 13" ~120 beads, micro facets, machine cut Use 0.012" wire or cord and 28 gauge wire Genuine natural suitable for fine jewelry; use 0.012" wire or cord and 28 gauge wire