Lava beads come in various sizes, from tiny seed beads to larger statement beads. Here is a list of some common sizes of lava beads in both millimeters (mm) and inches:

  1. 4mm – 0.157 inches
  2. 6mm – 0.236 inches
  3. 8mm – 0.315 inches
  4. 10mm – 0.394 inches
  5. 12mm – 0.472 inches
  6. 14mm – 0.551 inches
  7. 16mm – 0.63 inches
  8. 18mm – 0.709 inches
  9. 20mm – 0.787 inches

It’s important to note that the size of the hole in the lava beads can also vary, which may impact their use in jewelry making. Be sure to check the size of the hole before purchasing the beads to ensure they will fit your intended project.