Published by on 11/08/2026 Material: Black Onyx Agate Shape: Faceted Round Color: Black Size: 4mm - Approx 98 Beads Per Strand, With 0.8mm Hole 6mm - Approx 64 Beads Per Strand, With 1.0mm Hole 8mm - Approx 48 Beads Per Strand, With 1.0mm Hole 10mm - Approx 38 Beads Per Strand , With 1.0mm Hole 12mm - Approx 32 Beads Per Strand, With 1.0mm Hole 14mm - Approx 28 Beads Per Strand, With 1.0mm Hole 16mm - Approx 25 Beads Per Strand , With 1.0mm Hole 18mm - Approx 22 Beads Per Strand , With 1.5mm Hole The Black Onyx Mined in Brazil Note: -Gemstone bead sizes are approximate and may have a +/- 0.5mm difference. -Gemstone bead drill hole sizes are approximate and may have a +/- 0.2mm difference. Spend More! Save More! 10% Off When You Spend Over $50 15% Off When You Spend Over $100 20% Off When You Spend Over $200 stone loose polished strand beads precious gemstone jewerly making