High Quality Natural Moonstone Beads Brand new Smooth round Milky White with Rainbow Flash Each single strand is approximately 15''~15.5'' Inches Brand new High Quality Natural Moonstone Beads in smooth round shape with milky white and rainbow flash color. Each single strand is approximately 15" to 15.5" long. 4mm - 84 to 92 beads 6mm - 64 to 68 beads 8mm - 44 to 46 beads 10mm - 38 to 40 beads 12mm - 30 to 32 beads The hole size in those gemstones is about .82mm - 1.03mm depending on the size of the beads. For most round beads, 4mm – 8mm has a bead hole around .82mm and 10mm and beyond has a bead hole around 1.03mm.