Natural Blue Green Australian Opals

Natural blue green Australian opals capture the serene beauty of oceanic shades, displaying brilliant flashes of royal blue, cyan, and emerald green. Mined across Australia’s premier fields, these solid gemstones offer cool contemporary elegance. Every blue green opal in our collection is 100 percent natural and untreated.

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29.67ct Natural Boulder Opal Green Blue Fire

AU$901
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Sterling Silver Sparkling Boulder Opal Ring US 8

AU$844
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2.96ct Dark Opal Green Blue Fire

AU$823
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3.93ct Dark Opal Blue Green Fire

AU$737
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Boulder Opal Ring 15.5ct Sterling Silver US 7

AU$702
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Black Opal 1.04ct Teal Blue Green

AU$688
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3mm Round Calibrated Opal Doublet Parcel 2.85ct

AU$681
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7.6ct Natural Boulder Opal Blue Green

AU$674
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Sterling Silver Sparkling Boulder Opal Ring US 7

AU$645
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4.28ct Natural Boulder Opal

AU$645
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Blue Green Boulder Opal 8.03 ct

AU$638
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3.51ct Natural Boulder Opal Turquoise

AU$603
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Opal Doublet Parcel Calibrated 8x5mm

AU$596
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4mm Round Calibrated Opal Doublet Parcel 3.48ct

AU$596
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6.02ctw Natural Boulder Opal Set Blue Green

AU$503
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Opal Doublet Parcel Calibrated Oval and Round 3.83ct

AU$454
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3.4ct Natural Boulder Opal Deep Blue Fire

AU$454
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3.91ct Natural Boulder Opal Blue Fire

AU$425
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5.85ct Natural Boulder Opal

AU$404
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15.28ct Natural Boulder Opal Blue Green

AU$404

Cool Color Spectrums and Luminous Ocean Hues

Blue green opals are highly prized for their cool color palettes. Chemically, these colors are dictated by the physical size of the sub microscopic silica spheres within the gemstone structure. Spheres ranging from 0.1 microns to 0.15 microns in size diffract light specifically at the shorter wavelength end of the spectrum, producing electric green, bright teal, and deep royal blue flashes.

These serene, cool shades are highly versatile and pair beautifully with sterling silver, white gold, or platinum settings. Perfect for everyday casual wear, our solid blue green opals are ethically sourced directly from legendary Australian mining fields.

Frequently Asked Questions

What causes blue and green colors in opals?

They are caused by smaller silica spheres within the gemstone structure diffracting light at the blue end of the spectrum.

What jewelry settings suit blue green opals?

They look spectacular set in white gold, sterling silver, or platinum bezel mounts.

Are blue green opals natural?

Yes, every blue green opal we offer is guaranteed genuine, solid, and untreated.