Boulder Opal is a type of unique rock found in Queensland, Australia. It is easily identifiable because it is a mixture of ironstone and opal either in a matrix or layered; the stones often have a more ‘Earthy’, ‘rocky’ look and feel about them. Read More

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          Showing 1–84 of 282 results

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          Full Faced Gem Rainbow Duck Creek Boulder Opal 55.3 Ct

          $25,000 USD

          Absolute Gem Full Faced Duck Creek Boulder Opal 48 ct

          $21,600 USD

          Beautiful A+ Grade Freeform Full Faced Australian Boulder Opal 54.20 Ct

          $13,550 USD

          Grogeous A+ Grade Full Faced Australian Boulder Opal 59.90 Ct

          $11,980 USD

          Lovely Gem Grade Full Faced Australian Boulder Opal 60.90 Ct

          $9,150 USD

          Best Of Yowah Split Boulder Opal

          $3,990 USD

          Large Double Sided Wood Fossil Boulder Opal Specimen 214.9 Ct

          $3,500 USD

          Stunning Purple 3D Effect Winton Boulder Opal

          $2,950 USD

          Amazing Brilliant Electric Flash Large Boulder Opal

          $2,500 USD

          Stunning Winton Boulder Opal 106.9 Ct

          $2,200 USD

          Supernatural Glowing Purple Winton Dark Ironstone Boulder Opal

          $2,000 USD

          Phenomenal Purple Winton Dark Ironstone Boulder Opal

          $1,850 USD

          Rainbow Winton Boulder Opal 33.35 ct

          $1,850 USD

          Magnificent Color Play Winton Boulder Opal 18.5 Ct

          $1,800 USD

          Large Wood Fossil Boulder Opal Specimen 141.20 Ct

          $1,750 USD

          Amazing Green and Blue Sparkling Dark Ironstone Boulder Opal 25.1 Carats

          $1,600 USD

          Amazing Electric Reef Boulder Opal 73.9 Ct

          $1,600 USD

          Amazing Wood Replacement Boulder Opal 24.40 Ct

          $1,500 USD

          Gorgeous Double Sided Yowah Nut

          $1,500 USD

          Royal Purple Dark Ironstone Boulder Opal

          $1,300 USD

          Massive Stunning Ocean Boulder Opal Specimen 286.30 Ct

          $1,200 USD

          Amazing Large Boulder Opal Specimen 145 Ct

          $1,200 USD

          Rare Wood Fossil Boulder Opal 123.7 Ct

          $1,200 USD

          Rare Wood Fossil Boulder Opal 120.55 Ct

          $1,200 USD

          Rainbow Boulder Opal 4.9 ct

          $1,200 USD

          Stunning Boulder Opal Ringstone 6.85 ct

          $1,200 USD

          Purple Rain Stunning Winton Boulder Opal

          $1,150 USD

          Majestic Purple Glow Pendant Size Winton Boulder Opal

          $1,100 USD

          Winton Matrix Pattern Boulder Opal 138.9 Ct

          $1,600 $1,000 USD

          Beautiful Green Winton Boulder Opal 21.1 Ct

          $1,000 USD

          Stunning Winton Boulder Opal set in 18k White Gold Pendant Necklace

          $980 USD

          Very Colorful Winton Boulder Opal

          $900 USD

          Green Pendant Size Boulder Opal 54.55 Carats

          $900 USD

          Fascinating Rainbow Stripe Color-Bar Winton Boulder Opal

          $880 USD

          Double Sided Gem Yowah Nut Boulder Opal

          $825 USD

          Wood Fossil Boulder Opal 113.85 Ct

          $825 USD

          Purple with Green Spec Dark Ironstone Winton Boulder Opal

          $800 USD

          Lovely Green and Blue Ocean Boulder Opal 36.9 Carats

          $800 USD

          Stunning Boulder Matrix Opal Specimen 100.65 Ct

          $1,450 $800 USD

          Beautiful Bright Blue Polished Yowah Nut 52.7 Ct

          $800 USD

          Unique Purple Dark Ironstone Winton Boulder Opal

          $770 USD

          Stunning Colors Winton Boulder Opal ideal for Ring or Pendant

          $725 USD

          Rare Wood Fossil Boulder Opal 58.05 Ct

          $725 USD

          Beautiful Green and Blue Sparkling Dark Ironstone Boulder Opal 28.55 Carats

          $715 USD

          Fantastic Large Turquoise Ocean Blue Boulder Opal 25 ct

          $700 USD

          Amazing Electric Color Play Boulder Opal 27 Ct

          $680 USD

          Green and Blue Dark Ironstone Boulder Opal 26.95 Carats

          $670 USD

          Ocean Blue Boulder Opal 62 Ct

          $650 USD

          Beautiful Ocean Boulder Opal 62.95 Ct

          $630 USD

          Stunning Gem Boulder Opal Stone 6.2 Ct

          $620 USD

          Amazing Deep Blue Purple Boulder Opal 37.5 ct

          $600 USD

          Swirly Colored Square Shape Dark Ironstone Boulder Opal

          $600 USD

          Beautiful Colour Play Large Boulder Opal Specimen 154.85 Ct

          $600 USD

          Stunning Gem Boulder Opal 13.1 Ct

          $600 USD

          Deep Blue Ocean Winton Boulder Opal

          $568 USD

          Pretty Purple Dark Ironstone Winton Boulder Opal

          $560 USD

          Dragons Skin Super Unique Boulder Opal 99 ct

          $550 USD

          Unique two toned color Winton Boulder Opal

          $525 USD

          Stripey Flash Winton Boulder Opal

          $525 USD

          Supernatural Purple 3D Effect Winton Boulder Opal

          $525 USD

          Purple Green Blue Boulder Opal 10.7 Ct

          $525 USD

          Stunning Koroit Nut Boulder Opal Stone 39.65 Ct

          $525 USD

          Gorgeous Stripe Boulder Opal 45.2 Ct

          $520 USD

          Lilac Square Shape Australian Boulder Opal 61.5 Ct

          $500 USD

          Unique Matrix Veined Koroit Boulder Opal 156 ct

          $500 USD

          Large Surf Board Ocean Boulder Opal 29 ct

          $500 USD

          Spectacular Blue Winton Ocean Boulder Opal Pendant

          $500 USD

          Beautiful Turquoise Green Shimmer Boulder Opal 14 ct

          $750 $490 USD

          Stunning Blue Green Boulder Opal 4.5 Carats

          $475 USD

          Awesome Large Blue Purple Boulder Opal 37 ct

          $450 USD

          Magical Sparkling Large Boulder Opal 13.25 ct

          $450 USD

          Gorgeous Turquoise Stripe Boulder Opal Specimen 350.8 Ct

          $450 USD

          Gorgeous Flashy Ocean Boulder Opal Pendant

          $435 USD

          Awesome Green Flash Winton Boulder Opal

          $425 USD

          Electric Purple Large Boulder Opal

          $425 USD

          Gem Rainbow Flash Boulder Opal 7.45 Ct

          $570 $425 USD

          Beautiful Square Shape Unique Blue Boulder Opal

          $420 USD

          Large Unique Boulder Opal Specimen 152.2 Ct

          $420 USD

          Rectangle Shape Blue Purple Australian Boulder Opal 43.3 ct

          $400 USD

          Stunning Purple Winton Boulder Opal Pendant

          $400 USD

          Large Electric Veins Boulder Opal 85.85 Ct

          $400 USD

          Deep Blue Purple Boulder Opal Loose Stone 44.7 Ct

          $400 USD

          Gorgeous Lavender Purple Winton Boulder Opal

          $395 USD

          Magical Deep Blue Purple Boulder Opal 33.5 ct

          $390 USD