Natural Australian Rainbow Opal

Natural Australian rainbow opals display the entire spectrum of the rainbow in a single, mesmerizing play of color. Sourced from legendary fields such as Coober Pedy, these transparent and translucent crystal gems allow light to pass through their silica structure, illuminating flowing spectral patterns. Every stone is guaranteed 100 percent natural and solid.

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Absolute Gem Rare Harlequin Boulder Opal 14.7 ct

AU$71,414
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Black Opal 9.82ct Certified Neon Rainbow Fire Butterfly Wing

Original price was: AU$32,336.Current price is: AU$26,994.
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5.12ct Solid Black Opal Oval Rolling Rainbow Pattern

Original price was: AU$28,566.Current price is: AU$22,852.
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Dark Opal 8.22ct Metallic Red Pink Rainbow Fire

AU$17,425
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1.84ct Black Opal Rolling Multicolor Fire

AU$7,099
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Rolling Fire Dark Opal Platinum Ring 1.46 ct

Original price was: AU$8,284.Current price is: AU$7,041.
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1.1ct Black Opal Bright Red and Multicolor Fire

AU$6,284
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Black Opal 1.41ct Red Multicolor Fire

AU$6,042
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0.84ct Black Opal Metallic Neon Rainbow Fire

AU$4,999
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Dark Opal 1.85ct Neon Multicolor Fire

AU$4,570
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6.9 ct Natural Crystal Opal – Oval Vivid Multicolor

AU$4,570
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5.67ct Natural Dark Opal Multicolor

AU$3,314
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8.67ct Natural Dark Opal Oval Flagstone Pattern

AU$3,142
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26ct Natural Boulder Opal Rainbow Fire

AU$2,942
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0.5ct Black Opal – Neon Red Rainbow Fire

Original price was: AU$4,071.Current price is: AU$2,857.
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6.4ct Natural Crystal Boulder Opal

AU$2,835
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Opal Doublet 28.05ct Red Multicolor Fire

AU$2,642
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Opal Doublet 16.1ct Red Multicolor Fire

AU$2,571
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Dark Opal 0.93ct Neon Multicolor Fire

AU$2,285
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Black Crystal Opal 2.99 ct Multicolor Fire

AU$2,157

Flowing Spectral Displays and Luminous Beauty

Rainbow opals are unique because they showcase every single color of the visible spectrum within a single gem – from deep violet and blue to green, warm gold, and rare cherry red. This beautiful effect occurs because the sub microscopic silica spheres vary in size across the stone’s lattice, creating multiple distinct zones of diffraction.

We highly suggest readers check our detailed blog rainbow opals complete guide for mineral logical and cutting insights. These flowing spectral colors look highly spectacular when set in fine jewelry, especially custom pendants where light can pass through the transparent crystal body, making the rainbows practically sparkle from within. At Opal Galaxy, we source our rainbow opals directly from trusted miners on South Australian fields, ensuring authentic provenance and natural, untreated beauty.

Frequently Asked Questions

What defines a rainbow opal?

It is a precious opal displaying a continuous, flowing spectrum of colors from red to violet as it moves.

Where are rainbow opals mined?

The finest rainbow crystal opals are mined in the sedimentary basins of Coober Pedy, South Australia.

Are these rainbow colors natural?

Yes, every rainbow opal in our collection is 100 percent natural, solid, and untreated.