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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1.4ct Natural Dark Opal Lightning Ridge

AU$1,052
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1.35 ct Dark Opal Lightning ridge

AU$1,001
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10.8ct Natural Boulder Opal Wood Fossil

AU$980
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1.71ct Natural Black Crystal Opal Green Blue Fire

AU$980
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silver natural boulder opal pendant stripe rainbow showing soft rainbow stripe pattern
-15%
silver natural boulder opal pendant stripe rainbow held on finger showing layered rainbow colors
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Silver Natural Boulder Opal Pendant 34.9 ct – Stripe Rainbow Fire

Original price was: AU$1,145.Current price is: AU$973.
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1.31ct Natural Dark Opal Multi-Color Fire

Original price was: AU$1,388.Current price is: AU$971.
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2.42ct Natural Dark Opal Teardrop Pink Green

AU$967
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silver ocean boulder opal pendant with necklace 26.1 ct showing blue and green ocean color fire
-15%
silver ocean boulder opal pendant with necklace 26.1 ct held on finger showing vivid blue green color play
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Silver Ocean Boulder Opal Pendant with Necklace 26.1 ct

Original price was: AU$1,116.Current price is: AU$949.
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11.13ct Natural Dark Opal – Oval Pastel Sunset Fire

AU$930
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15.7ct Natural Boulder Opal Turquoise Blue Green

AU$923
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Opal Doublet 11.9ct Red Multicolor Fire

AU$916
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6.95ct Crystal Boulder Opal

AU$887
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1.24ct Dark Opal Rainbow Fire

AU$887
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Metallic Green Fire Lightning Ridge Black Opal Teardrop 1 ct

AU$880
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0.98ct Natural Black Opal – Oval Blue Green

AU$858
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Purple Blue Winton Boulder Opal 22.32 ct

AU$851
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1.63ct Natural Faceted Crystal Opal – Cushion Cut

AU$844
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2.96ct Dark Opal Green Blue Fire

AU$830
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2.29ct Natural Dark Opal Blue Green Fire

AU$815
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4.8ct Natural White Opal Cooberpedy

AU$808

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.