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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Dark Opal 3.73 ct Vivid Multicolor Fire

AU$2,014
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1.97ct Natural Dark Opal Rolling Rainbow Fire

AU$2,000
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Crystal Opal 2.33ct Calibrated 10x7mm / 9x6mm / 6x4mm

AU$1,857
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2.31ct Natural Dark Opal Rainbow Fire

AU$1,821
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2.74ct Natural Dark Opal Rolling Rainbow Fire

AU$1,664
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3.29ct Natural Dark Opal Freeform Neon Rainbow Fire

AU$1,357
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Multi Color Fire Australian Dark Opal 2.49 ct

AU$1,328
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4.05ct Natural Dark Opal -Teardrop Rainbow Fire

AU$1,278
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1.23ct Natural Dark Opal Rainbow Rolling Ribbon Pattern

AU$1,257
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3.64ct Natural Dark Opal -Teardrop Rainbow Fire

AU$1,235
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2.03ct White Opal Heart Vivid Pink Blue Green Fire

AU$1,185
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14x9mm + 7x5mm Crystal Opal Calibrated 2.08ct

AU$1,143
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10x5mm + 8x4mm Crystal Opal Calibrated 1.38ct

AU$1,143
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1.67ct Natural Dark Opal Heart

AU$1,085
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1.2ct Dark Opal Multicolor flash

AU$1,064
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2.72ct Dark Opal MultiColor Fire

AU$1,028
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10x5mm Crystal Opal Calibrated 7ct

AU$1,000
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Opal Doublet 11.9ct Red Multicolor Fire

AU$914
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1.2 ct Dark Opal Rainbow Lightning Ridge

AU$914
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3.6ct Natural Crystal Boulder Opal Round

AU$900

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.