Showing 1–96 of 217 results

Full Faced Gem Rainbow Duck Creek Boulder Opal 55.3 Ct

$25,000 USD

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

$13,550 USD

Gorgeous 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

Large Wood Fossil Boulder Opal Specimen 141.20 Ct

$1,750 USD

Amazing Large Boulder Opal Specimen 145 Ct

$1,600 USD

Stunning Gem Ocean Reef Boulder Opal Teardrop 15.7 carat

$1,500 USD

Massive Stunning Ocean Boulder Opal Specimen 286.30 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

Spectacular Purple Wood Fossil Boulder Opal 20.6 carat

$1,000 USD

Gorgeous Flashy Green Boulder Opal Teardrop 11.45 carat

$900 USD

Green Pendant Size Boulder Opal 54.55 Carats

$900 USD

Wood Fossil Boulder Opal 113.85 Ct

$825 USD

Beautiful Bright Blue Polished Yowah Nut 52.7 Ct

$800 USD

Elegant Purple Rectangle Shape Gem Boulder Opal 24 carat

$795 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

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

Lilac Square Shape Australian Boulder Opal 61.5 Ct

$500 USD

Large Surf Board Ocean Boulder Opal 29 ct

$500 USD

Beautiful Turquoise Green Shimmer Boulder Opal 14 ct

$490 USD

Awesome Large Blue Purple Boulder Opal 37 ct

$450 USD

Phenomenal Purple Dark Ironstone Boulder Opal

$435 USD

Awesome Green Flash Winton Boulder Opal

$425 USD

Electric Purple Large Boulder Opal

$425 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

Gorgeous Lavender Purple Winton Boulder Opal

$395 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

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

57 ct Natural Solid Boulder Opal from Koroit Queensland Australia

$365 USD

Blue Green Boulder Opal 40 ct

$365 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

Gorgeous Ocean Boulder Opal from Australia 68 Ct

$350 USD

Natural Solid Boulder Opal Stone 37.9 Ct

$350 USD

Large Rectangular Shape Boulder Opal

$345 USD

Brilliant Multi Color Flash Boulder Opal 9.25 Ct

$345 USD

Large Blue Rectangle Shape Boulder Opal

$335 USD

Beautiful Shiny Stripes Australian Boulder Opal 10 ct

$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

Large Oval Shape Yowah Boulder Opal Specimen 84.7 ct

$300 USD

Gorgeous Purple Flash Australian Boulder Opal 32.35 ct

$300 USD

3 pcs Sparkling Rainbow Flash Wood Fossil Australian Boulder Opal Parcel 25.5 ct

$300 USD

Unique Wood Fossil Boulder Opal 35.3 ct

$300 USD

Green Pink Fang Shape Boulder Opal 25.8 ct

$300 USD

Gem Neon Bright Stunning Boulder Opal 4 Ct

$300 USD

Large Opal 72 ct Natural Solid Boulder Opal from Koroit Queensland Australia

$295 USD

Unique Turtle Skin Pattern Teardrop Koroit Boulder Opal 112ct

$295 USD

Deep Blue Free Form Australian Boulder Opal Stone 11.7 ct

$295 USD

Australian Boulder Opal Square Shape Loose Stone 34 ct

$295 USD

Deep Purple Blue with Green Sparkle Australian Boulder Opal 10.2 ct

$295 USD

Blue Green Australian Boulder Opal Free Form Stone 20.6 ct

$295 USD

Beautiful Multi color Australian Boulder Opal 14.8 ct

$295 USD

Unique Koroit Matrix Austrlaian Boulder Opal 59 Ct

$295 USD

Electric Green Purple Veins Matrix Boulder Opal 15 ct

$295 USD

Large Green Boulder Opal 33 ct

$295 USD

Double sided Rainbow Flash Wood Fossil Boulder Opal TearDrop shape 13.2 ct

$290 USD

Blue Purple Boulder Opal Pendant Stone 63.9 ct

$285 USD

Blue Purple Boulder Opal 21 ct

$285 USD

Rainbow Stripe Pendant Size Winton Boulder Opal

$285 USD

Large Opal 96 ct Natural Solid Boulder Opal from Koroit Queensland Australia

$280 USD

Large Beach Vibes Boulder Opal 55.35 ct

$280 USD

Freeform Opal 32 ct Natural Solid Boulder Opal from Koroit Queensland Australia

$275 USD

Sparkling Green Free Form Australian Boulder Opal Stone 13.3 ct

$265 USD

Electric Flash Australian Wood Fossil Boulder Opal loose stone 17.25 ct

$265 USD

Beautiful Colored Pendant Size Winton Boulder Opal 46 ct

$260 USD

Green Blue Flash Egg Shape Australian Boulder Opal 27 ct

$260 USD

Gorgeous Ocean Stripe Boulder Opal 25.3 Carats

$255 USD

Unique Pattern Koroit Boulder Opal Pendant Stone 68 ct

$250 USD

Large Blue Purple Green Veins Freeform Australian Boulder Opal 56 ct

$250 USD

Awesome Green Blue Purple Vein Boulder Opal Ideal for Pendant 89 ct

$250 USD

Huge Green Flash Half Moon Shape Australian Boulder Opal 120 ct

$250 USD

Green Purple Gradation Free form Australian Boulder Opal 9 ct

$250 USD

Deep Purple Blue Australian Boulder Opal 12.45 ct

$250 USD

Large Free Form Blue Green Veins Yowah Boulder Opal Specimen 47 ct

$250 USD