Boulder Opals 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 1–96 of 323 results

          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

          Large Double Sided Wood Fossil Boulder Opal Specimen 214.9 Ct

          $3,500 USD

          Amazing Brilliant Electric Flash Large Boulder Opal

          $2,500 USD

          Large Wood Fossil Boulder Opal Specimen 141.20 Ct

          $1,750 USD

          Massive Stunning Ocean Boulder Opal Specimen 286.30 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

          Stunning Boulder Opal Ringstone 6.85 ct

          $1,200 USD

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

          $980 USD

          Green Pendant Size Boulder Opal 54.55 Carats

          $900 USD

          Amazing Large Boulder Opal Specimen 145 Ct

          $1,200 $900 USD

          Large Gorgeous Half Moon Yowah Boulder Opal 56 ct

          $850 USD

          Wood Fossil Boulder Opal 113.85 Ct

          $825 USD

          Beautiful Bright Blue Polished Yowah Nut 52.7 Ct

          $800 USD

          Rare Wood Fossil Boulder Opal 58.05 Ct

          $725 USD

          Large Square Shape Electric Rainbow Flash Wood Fossil Boulder Opal 63.5 ct

          $685 USD

          Large Koroit Pendant Size Stripe Pattern Boulder Opal Stone 87 ct

          $650 USD

          Purple Australian Boulder Opal 25.5 ct

          $650 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

          6 pcs Green Blue Purple Mixed Shape Australian Boulder Opal Parcel 33.6 ct

          $530 USD

          Unique Long Teardrop Shape Koroit Boulder Matrix Opal Pendant Stone 71 ct

          $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

          Gorgeous Stripe Boulder Opal 45.2 Ct

          $520 USD

          Ocean Blue Green Australian Boulder Opal 5.35 ct

          $500 USD

          Beautiful Green Blue Veins Yowah Boulder Opal 50 ct

          $500 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

          5 pcs Gem Sparkling Mixed Shape Australian Wood Fossil Boulder Opal Parcel 19.9 ct

          $495 USD

          4 pcs Green Pink Mixed Shape Australian Boulder Opal Parcel 19.89 ct

          $495 USD

          Beautiful Turquoise Green Shimmer Boulder Opal 14 ct

          $750 $490 USD

          6 pcs Green Pink Mixed Shape Australian Boulder Opal Parcel 22.5 ct

          $450 USD

          Awesome Large Blue Purple Boulder Opal 37 ct

          $450 USD

          Gorgeous Flashy Ocean Boulder Opal Pendant

          $435 USD

          Sparkling Blue Purple Australian Boulder Opal 9 ct

          $425 USD

          Awesome Green Flash Winton Boulder Opal

          $425 USD

          Electric Purple Large Boulder Opal

          $425 USD

          8 pcs Multi Color Mixed Shape Australian Boulder Opal Parcel 88.9 ct

          $420 USD

          6 pcs Green Blue sparkle Mixed Shape Australian Boulder Opal Parcel 30.6 ct

          $420 USD

          Large Unique Boulder Opal Specimen 152.2 Ct

          $420 USD

          Rainbow Sparkling Large Semi Teardrop Shape Australian Boulder Opal 131 ct

          $400 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

          Gorgeous Lavender Purple Winton Boulder Opal

          $395 USD

          6 pcs Multi Color Mixed Shape Australian Boulder Opal Parcel 72.7 ct

          $390 USD

          Magical Deep Blue Purple Boulder Opal 33.5 ct

          $390 USD

          Gem Neon Bright Stunning Boulder Opal 4 Ct

          $390 USD

          6 pcs Green Pink Mixed Shape Australian Boulder Opal Parcel 24.5 ct

          $385 USD

          Stunning Australian Boulder Opal Specimen 115.1 Ct

          $385 USD

          11 pcs Multi color Mixed Shape Australian Boulder Opal Parcel 157.2 ct

          $380 USD

          Green Flash Blue Australian Boulder Opal loose stone 14.8 ct

          $380 USD

          Gorgeous Blue Green Australian Boulder Opal 17.3 ct

          $380 USD

          Large Amazing Australian Boulder Opal Specimen 119.8 Ct

          $380 USD

          6 pcs Sparkling Rainbow Rectangle Shape Flashy Wood Fossil Australian Boulder Opal Parcel 25.2 ct

          $375 USD

          Deep Purple Triangle Shape Winton Boulder Opal 37.95 ct

          $370 USD

          Blue Green Boulder Opal 40 ct

          $365 USD

          Stunning Teardrop Shape Ladies Boulder Opal Pendant

          $365 USD

          11 pcs Multi color Mixed Shape Australian Boulder Opal Parcel 104.5 ct

          $360 USD

          6 pcs Multi color Mixed Shape Australian Boulder Opal Parcel 77 ct

          $360 USD

          Rainbow Flash Australian Boulder Opal 14.5 ct

          $360 USD

          Green Large Pyramid Shape Boulder Opal 94 ct

          $350 USD

          Large Shield Shape Australian Boulder Opal loose stone 127 ct

          $350 USD

          5 pcs Multi color Mixed Shape Australian Boulder Opal Parcel 60.8 ct

          $350 USD

          Large Free Form Yowah Boulder Opal Specimen 120.5 ct

          $350 USD

          Diamond shape Australian Boulder Opal 25.7 ct

          $350 USD

          Gorgeous Blue Green Deep Ocean Australian Boulder Opal 11.7 ct

          $350 USD

          Sparkling Rainbow Wood Fossil Boulder Opal 28.6 ct

          $350 USD

          Large Green Blue Flash Insane Veins Yowah Boulder Opal Specimen 112 ct

          $350 USD

          Large Rainbow Flash Veins Yowah Boulder Opal Specimen 102 ct

          $350 USD

          Gorgeous Ocean Boulder Opal from Australia 68 Ct

          $350 USD

          Gorgeous Deep Purple Boulder Opal 20 ct

          $350 USD

          Rainbow Electric Flash Boulder Opal 23.15 Ct

          $350 USD

          Large Lime green Shimmer Australian Boulder Opal 69 Ct

          $350 USD

          Natural Solid Boulder Opal Stone 37.9 Ct

          $350 USD

          Rainbow Color Sparkling Boulder Opal 5.3 Ct

          $350 USD

          Large Rectangular Shape Boulder Opal

          $345 USD

          Brilliant Multi Color Flash Boulder Opal 9.25 Ct

          $345 USD

          Sparkling Boulder Opal Loose Stone 33.7 Ct

          $340 USD

          Large Blue Rectangle Shape Boulder Opal

          $335 USD

          Beautiful Shiny Stripes Australian Boulder Opal 10 ct

          $325 USD

          Gorgeous Purple Womens Boulder Opal Pendant

          $325 USD

          Stunning Purple Green Stripe Ladies Boulder Opal Pendant

          $325 USD

          Elegant Colored Winton Boulder Opal

          $325 USD

          Cute 3D effect Boulder Opal

          $325 USD

          Stunning Green and Purple Flash 3D Effect Boulder Opal Ringstone

          $325 USD

          Awesome Rainbow Stripe Large Boulder Opal 27.65 Ct

          $325 USD

          Gorgeous Triangular Wood Replacement Boulder Opal Stone

          $325 USD