Emerald Beads Top Quality Genuine Gemstone Smooth Round Beads 6mm 8mm 10mm
MOHS hardness: 7.5. – Drill hole sizes on MOST beads – 4mm beads: about 0.5mm; 6-8mm beads: about 0.7-0.8mm; 10-12mm beads: about 0.8-1.0mm. Our beads are sold by the strand, not the number of beads.