Pipe Crystal / Wood Fossil (82)

Yowah & Koroit Boulder Opal (107)

Winton Boulder Opal Stones (89)

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


Showing 1–36 of 212 results

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9.25 Carat Brilliant Multi Colour Flash Boulder Opal
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9.25 Carat Brilliant Multi Color Flash Boulder Opal

$345.00 USD

In stock

5.25 Carat Lovely Boulder Opal
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5.25 Carat Lovely Boulder Opal

$50.00 USD

In stock

4.75 Carat Pretty Ocean Boulder Opal
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4.75 Carat Pretty Ocean Boulder Opal

$50.00 USD

In stock

10.2 Carat Gorgeous Ocean Boulder Opal
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10.2 Carat Gorgeous Ocean Boulder Opal

$185.00 USD

In stock

3.85 Carat Lovely Cotton Candy Boulder Opal
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3.85 Carat Lovely Cotton Candy Boulder Opal

$38.00 USD

In stock

8.55 Carat Beautiful Colourful Striped Boulder Opal
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8.55 Carat Beautiful Colourful Striped Boulder Opal

$85.00 USD

In stock

8.7 Carat Lovely Striped Ocean Boulder Opal
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8.7 Carat Lovely Striped Ocean Boulder Opal

$70.00 USD

In stock

7.15 Carat Beautiful Red Flash Boulder Opal
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7.15 Carat Beautiful Red Flash Boulder Opal

$65.00 USD

In stock

9.45 Carat Lovely Ocean Boulder Opal
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9.45 Carat Lovely Ocean Boulder Opal

$90.00 USD

In stock

12.1 Carat Unique Colourful Boulder Opal
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12.1 Carat Unique Colourful Boulder Opal

$85.00 USD

In stock

11.25 Carat Green Colour Play Beautiful Boulder Opal
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11.25 Carat Green Colour Play Beautiful Boulder Opal

$250.00 USD

In stock

1 Carat Top Gem Pipe Crystal Boulder Opal
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1 Carat Top Gem Pipe Crystal Boulder Opal

$300.00 USD

In stock

SS59
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1.25 Carat Round Cabochon Pipe Crystal Boulder Opal

$65.00 USD

In stock

6.15 Carat Beautiful Rainbow Boulder Opal
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6.15 Carat Beautiful Rainbow Boulder Opal

$500.00 USD

In stock

11.3 Carat Sparkling Rainbow Veins Boulder Matrix Opal
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11.3 Carat Sparkling Rainbow Veins Boulder Matrix Opal

$200.00 USD

In stock

3 Piece Lovely Purple Pipe Crystal Boulder Opal Parcel
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3 Piece Lovely Purple Pipe Crystal Boulder Opal Parcel

$220.00 USD

In stock

5.5 Carat Purple Pipe Crystal Boulder Opal
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5.5 Carat Purple Pipe Crystal Boulder Opal

$70.00 USD

In stock

350.8 Carat Gorgeous Turquoise Stripe Boulder Opal Specimen
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350.8 Carat Gorgeous Turquoise Stripe Boulder Opal Specimen

$450.00 USD

In stock

286.30 Carat Massive Stunning Ocean Boulder Opal Specimen
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286.30 Carat Massive Stunning Ocean Boulder Opal Specimen

$1,200.00 USD

In stock

154.85 Carat Beautiful Colour Play Large Boulder Opal Specimen
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154.85 Carat Beautiful Colour Play Large Boulder Opal Specimen

$600.00 USD

In stock

152.2 Carat Large Unique Boulder Opal Specimen
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152.2 Carat Large Unique Boulder Opal Specimen

$420.00 USD

In stock

45.2 Carat Gorgeous Stripe Boulder Opal
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45.2 Carat Gorgeous Stripe Boulder Opal

$520.00 USD

In stock

145 Carat Amazing Large Boulder Opal Specimen
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145 Carat Amazing Large Boulder Opal Specimen

$1,200.00 USD

In stock

181.2 Carat Huge Boulder Opal Specimen
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181.2 Carat Huge Boulder Opal Specimen

$145.00 USD

In stock

SS61B
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2.1 Carat Rare Faceted Pipe Crystal Boulder Opal

$700.00 USD

In stock

6.2 Carat Stunning Gem Boulder Opal Stone
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6.2 Carat Stunning Gem Boulder Opal Stone

$620.00 USD

In stock

9.55 Carat Beautiful Green Shimmer Wood replacement Boulder Opal
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9.55 Carat Beautiful Green Shimmer Wood replacement Boulder Opal

$125.00 USD

In stock

56.2 Carat Large Boulder Matrix Opal
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56.2 Carat Large Boulder Matrix Opal

$280.00 USD

In stock

10.7 Carat Magical Electric Flash Boulder Matrix Opal
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10.7 Carat Magical Electric Flash Boulder Matrix Opal

$80.00 USD

In stock

7.95 Carat Amazing Electric Color Lines Boulder Opal
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7.95 Carats Amazing Electric Color Lines Boulder Opal

$400.00 USD

In stock

11.3 Carat Purple Boulder Opal
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11.3 Carat Purple Boulder Opal

$80.00 USD

In stock

18.65 Carat Magical Electric Flash Boulder Matrix Opal
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18.65 Carat Magical Electric Flash Boulder Matrix Opal

$85.00 USD

In stock

85.85 Carat Large Electric Veins Boulder Opal
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85.85 Carat Large Electric Veins Boulder Opal

$400.00 USD

In stock

12.65 Carats Electric Color Play Boulder Opal
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12.65 Carats Electric Color Play Boulder Opal

$120.00 USD

In stock

23.15 Carats Rainbow Electric Flash Boulder Opal
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23.15 Carats Rainbow Electric Flash Boulder Opal

$350.00 USD

In stock

69 Carats Large Lime green Shimmer Australian Boulder Opal
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69 Carats Large Lime green Shimmer Australian Boulder Opal

$350.00 USD

In stock