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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1.26ct Natural Dark Opal – Teardrop Green Blue

AU$265
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4.31ct Natural Boulder Opal Vivid Blue Green

AU$236
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32ct Natural Boulder Matrix Opal Koroit Australia

AU$236
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Boulder Opal Pendant with Adjustable Necklace 56 ct

Original price was: AU$258.Current price is: AU$219.
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1.08ct Natural Dark Opal Green Fire

AU$215
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1.64ct Natural Dark Opal Bright Green Blue Cyan Fire

AU$207
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6.99ct Natural Crystal Boulder Opal

AU$200
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Boulder Opal Pendant 86ct Green Blue Flash

Original price was: AU$236.Current price is: AU$200.
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Boulder Opal Pendant 18 ct

Original price was: AU$236.Current price is: AU$200.
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1.2ct Crystal Boulder Opal

AU$143
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1.7ct Natural Crystal Boulder Opal

AU$140
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23ctw Natural Crystal Boulder Opal Parcel 6pcs

AU$139
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33.63ct Crystal Boulder Opal Parcel

AU$139
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23.55ctw Natural Crystal Boulder Opal Parcel 6pcs

AU$129

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.