Natural Precious Opal Stones

Natural precious opal stones display a shifting rainbow of spectral colors that dance across their polished cabochon surfaces with every movement. Sourced directly from Australia’s famous outback mining fields, our collection features solid black, boulder, crystal, and light white opals. Every polished loose stone is guaranteed natural and untreated.

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12.47ct Natural Australian Crystal Boulder Opal

AU$599
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silver Australian boulder opal pendant with necklace 24 ct showing vivid blue fire
-15%
silver Australian boulder opal pendant with necklace 24 ct held on finger showing strong blue color play
This product has multiple variants. The options may be chosen on the product page

Silver Australian Boulder Opal Pendant with Necklace 24 ct

Original price was: AU$670.Current price is: AU$570.
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Boulder Opal Pendant 103ct Multicolor Fire

Original price was: AU$670.Current price is: AU$570.
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Australian Black Opal Oval 1.8ct Lightning Ridge

AU$563
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1.25ct Natural Black Opal Green Blue

AU$563
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33ct Double Sided Natural Koroit Boulder Opal

AU$563
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9.5ct Natural Boulder Opal Blue Green

AU$549
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2.2ct Natural Black Opal Blue Fire

AU$549
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Large Boulder Opal Pendant 193ct

Original price was: AU$641.Current price is: AU$546.
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silver multi color boulder opal pendant with necklace 18.7 ct showing natural Australian opal colors
-15%
close view of silver multi color boulder opal pendant with necklace 18.7 ct showing detailed rainbow color play
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Silver Multi Color Boulder Opal Pendant with Necklace 18.7 ct

Original price was: AU$641.Current price is: AU$546.
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silver sword shape boulder opal pendant with necklace 27.6 ct necklace showing vivid blue green color play
-15%
silver sword shape boulder opal pendant with necklace 27.6 ct held on finger showing natural Australian opal colors
This product has multiple variants. The options may be chosen on the product page

Silver Boulder Opal Pendant with Necklace 27.6 ct – Blue Green

Original price was: AU$641.Current price is: AU$546.
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7.2ct Crystal Boulder Opal

AU$542
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4.5ct Natural Faceted Crystal Opal Pair – Oval

AU$542
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Australian Black Opal Pear 1.15ct Lightning Ridge

AU$535
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Australian Boulder Opal Multicolor Fire 1.56ct

AU$535
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Australian Boulder Opal Winton Multicolor Fire 1.45ct

AU$535
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0.8ct Black Crystal Opal Heart – Blue and Violet Fire

AU$535
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45.77ct Large Round Oval Koroit Boulder Opal

AU$535
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silver purple oval boulder opal pendant with necklace 24.7 ct showing blue and purple fire
-15%
silver purple oval boulder opal pendant with necklace 24.7 ct held on finger showing vivid blue purple color play
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Silver Purple Oval Boulder Opal Pendant with Necklace 24.7 ct

Original price was: AU$613.Current price is: AU$522.
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silver Australian boulder opal pendant with necklace 23.2 ct showing vivid blue fire
-15%
silver Australian boulder opal pendant with necklace 23.2 ct held on finger showing natural Australian opal colors
This product has multiple variants. The options may be chosen on the product page

Boulder Opal Pendant 23.2ct Sterling Silver

Original price was: AU$613.Current price is: AU$522.

Choosing and Valuing Natural Precious Opal Stones

To evaluate and choose a loose precious opal, buyers must understand the primary value factors. The background darkness, or body tone, is the foundation, with darker body tones (such as black and dark opals) making colors appear more intense and command higher prices. The play of color brightness is equally critical; a brilliant stone displays intense fire even in dim, indoor lighting conditions.

The spectral color range also dictates value, with red being the rarest and most expensive hue, followed by orange, green, and blue. To find comprehensive tips, please consult our how to buy Australian opals technical guide to learn about patterns and body tone scales. Whether sourcing for custom jewelry or building a long term collector portfolio, our ethically sourced, hand selected loose stones offer exceptional quality and value.

Frequently Asked Questions

What defines a precious opal stone?

Precious opal is defined by its ability to diffract light into a vibrant play of color, which common opal lacks.

Where are your precious stones mined?

Our stones are sourced directly from premier Australian fields including Lightning Ridge, Winton, and Coober Pedy.

What shapes are these stones cut into?

We offer classic oval cabochons alongside organic freeform shapes that preserve natural carat weight.

Are these loose stones calibrated?

We offer both standardized calibrated stones for standard mounts and unique freeform pieces.

Can I request custom video clips of these stones?

No, our professional 4K videos already show each stone under optimized neutral light conditions.