High quality Grade A natural Black Tourmaline semi-precious gemstone round beads. 6mm round beads hole size - approx 0.8mm - 1mm. 10mm round beads hole size - approx 1mm - 1.2mm. 8mm round beads hole size - approx 1mm.

Size (mm): 4
Shape: Round
Type: Gemstone
Main Colour: Multi-Coloured
Subtype: Tourmaline
Purpose: Jewellery Making