Blue Sapphire Rondelle Beads Facet Natural Genuine 4mm-5mm (Qty=12) 12 Blue Sapphire faceted rondelle beads 4mm to 5mm diameter, about 2mm thick, sizes vary, .015" hole; holes too small for stretch bracelets Opaque, very hard to find in this size and quality Genuine Natural blue color, small holes, use very fine cord or wire Loose beads for jewelry making, 1 specified buys 12, 2 buys 24, etc.