Winton Boulder Opals are discovered within a 100km radius of the town of Winton in Central Queensland. It is one of the oldest and most famous Opal mining towns in the world.Read More


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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

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

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

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

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

31.55 Carats Lovely Australian Boulder Opal Specimen
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31.55 Carats Lovely Australian Boulder Opal Specimen

$165.00 USD

In stock

63.8 Carats Beautiful Stripe Natural Solid Boulder Opal
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63.8 Carats Beautiful Stripe Natural Solid Boulder Opal

$165.00 USD

In stock

37.9 Carats Natural Solid Boulder Opal Stone
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37.9 Carats Natural Solid Boulder Opal Stone

$350.00 USD

In stock

57.35 Carats Large Amazing Double Sided Natural Solid Boulder Jelly Opal
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57.35 Carats Large Amazing Double Sided Natural Solid Boulder Jelly Opal

$570.00 USD

In stock

9.75 Carats Green Flash Natural Solid Boulder Matrix Opal
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9.75 Carats Green Flash Natural Solid Boulder Matrix Opal

$155.00 USD

In stock

32.7 Carats Large Australian Boulder Opal
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32.7 Carats Large Australian Boulder Opal

$120.00 USD

In stock

29.4 Carats Large Australian Boulder Opal
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29.4 Carats Large Australian Boulder Opal

$120.00 USD

In stock

36.3 Carats Large Australian Boulder Opal
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36.3 Carats Large Australian Boulder Opal

$120.00 USD

In stock

46.2 Carats Large Australian Boulder Opal
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46.2 Carats Large Australian Boulder Opal

$160.00 USD

In stock

Large 35.95 Carat Australian Boulder Opal
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Large 35.95 Carat Australian Boulder Opal

$1,300.00 USD

In stock

26.3 Carats Large Purple Australian Boulder Opal Polished Stone
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26.3 Carats Large Purple Australian Boulder Opal Polished Stone

$135.00 USD

In stock