Natural Australian Boulder

Unset

  • Boulder opal 2.41ct 13.6 x 7.9mm Australian opal natural solid loose unset stone
  • Boulder opal 2.78ct 10 x 6.7mm Australian opal natural solid loose unset stone
  • Boulder opal 1.84ct 10 x 5.8mm Australian opal natural solid loose unset stone
  • Boulder opal 3.67ct 14 x 7.6mm Australian opal natural solid loose unset stone
  • Boulder opal 2.48ct 12 x 7mm Australian opal natural solid loose unset stone
  • Boulder opal 5.14ct 13.7 x 12mm Australian opal natural solid loose unset stone
  • Boulder opal 53.50ct 25 x 36mm Natural solid Australian opal unset stone blue
  • Boulder opal 24.57ct 27 x 20mm Australian opal natural solid loose unset stone
  • Boulder opal 5.31ct 14.7 x 9.6mm Australian opal natural solid loose unset stone
  • Boulder opal 5.41ct 20 x 9.6mm Australian opal natural solid loose unset stone
  • Boulder opal 12.55ct 26.7 x 13mm Australian opal natural solid loose unset stone
  • Boulder opal 11.72ct 32 x 8mm Australian opal natural solid unset stone Winton
  • AUSTRALIAN BOULDER OPAL GEMSTONE POLISHED CABOCHON UNSET 54.5ct OCA10478
  • 41x12mm 31.60ct Australian natural solid boulder opal loose unset stone
  • Boulder opal 7.08ct 22.7 x 9.8mm Australian opal natural solid loose unset stone
  • Boulder opal 11.20ct 27 x 9mm Natural solid Australian opal loose unset stone
  • Boulder opal 18.52ct 20 x 19mm Australian opal natural solid loose unset stone