Dark Heat Treated citrine gemstone round beads Quantity: one strand approx 15" in length Size: approx 7.5mm - 8mm per bead (slightly smaller than standard 8mm beads) Beads sizes do vary between different gemstones or even batches for the same gemstone. Please note that there could be a variation of up to 1mm - 1.5mm in size. Beads hole size reference: 4mm round beads hole size - approx 0.6mm 6mm round beads hole size - approx 0.8mm - 1mm 8mm round beads hole size - approx 1mm 10mm round beads hole size - approx 1mm - 1.2mm