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Purple winton crystal boulder opal for pendant face view showing a teardrop cabochon with strong blue green flashes over a purple base.
-51%
Purple winton crystal boulder opal for pendant shown on a hand for scale with vivid blue green and purple color across the face.

Purple Winton Crystal Boulder Opal for Pendant 31.95 ct

Original price was: AU$12,490.Current price is: AU$6,106.

Opal: Natural, Solid, Untreated, Polished
Source: Winton, QLD, Australia
Weight: 31.95 ct
Dimensions: 42x18x8 mm
Size and weight are approximate

Save 5% with International Bank Transfer

This Opal is eligible to purchase on a Payment Plan

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Black Opal 1.41ct Red Multicolor Fire

AU$5,870

Natural Australian black opal with bright red dominant multicolor fire in a polished cabochon.
Ideal for a custom ring or pendant, perfect for October birthstone jewelry and a meaningful gift.

Type: Natural Solid Untreated Dark Opal (Semi Black Opal)

Origin: Lightning Ridge Australia

Dimensions: 13.5 x 6.5 x 2.6 mm
Weight: 1.41ct

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1.46ct Natural Black Opal Teardrop Turquoise Blue Green

AU$5,523

Dimensions: 10.4×6.4×3.5mm approx
Weight: 1.46ct approx
Origin: Lightning Ridge, Australia
Type: Natural Solid Untreated Black Opal
Color: Very bright turquoise blue and green fire with exceptional gem brilliance
Shape: Teardrop shape, Ideal for custom ring or pendant

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Lightning Ridge Oval Crystal Opal 4.87ct

AU$4,996

Genuine Australian opal features bright rainbow fire. A high grade loose gemstone suitable for a custom solitaire ring or luxury pendant.

Dimensions: 18 mm x 10.5 mm x 4.5 mm
Gemstone Type: Solid Natural Crystal Opal
Origin: Coocoran Field, Lightning Ridge, New South Wales, Australia
Weight: 4.87ct

100% natural solid Australian opal. No treatments. No doublets or triplets. Not Ethiopian opal or assembled stone.

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Natural black opal blue green fire face view highlighting electric color patterns.
-31%
Natural black opal blue green fire shown on fingers to demonstrate size and proportions.

5.91ct Solid Black Opal Vivid Neon Blue Green Fire

Original price was: AU$7,043.Current price is: AU$4,843.

Type: Natural, Solid, Untreated Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 19.5×8.5×5mm approx.
Weight: 5.91ct approx.)

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This Opal is eligible to purchase on a Payment Plan

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Teardrop black opal with strong gold green blue color pattern
-37%
Black opal teardrop held between fingers showing bright color play

1.81ct Black Opal Golden Yellow Green Blue Fire

Original price was: AU$7,217.Current price is: AU$4,580.

Type: 100% natural solid untreated black opal from Lightning Ridge Australia
Dimensions: 10×7.3×3.8mm approx.
Weight: 1.81ct approx.
Shape: Teardrop shape with polished high quality surface
Color: Vivid gold yellow green and blue fire with neon glow
Purity: 100% pure Australian opal, No doublet no triplet
Use: Ideal for custom opal ring, pendant, or fine jewelry
Birthstone: October birthstone with symbolic meaning

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This Opal is eligible to purchase on a Payment Plan

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Dark Opal 1.85ct Neon Multicolor Fire

AU$4,441

Natural Australian opal displaying vivid neon bright pink, orange, yellow, green, and blue fire with strong color contrast. Polished oval cabochon, ideal as a premium center stone for a ring or fine jewelry setting.

Type: Natural Solid Untreated Dark Opal (Semi Black Opal)

Origin: Lightning Ridge Australia

Dimensions: 9.5 x 7.4 x 4.1 mm
Weight: 1.85 carats

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11.3 ct Half Moon Crystal Boulder Opal – Blue Green

AU$4,441

Opal Details:

Natural Solid Untreated Australian Boulder Opal Polished Stone
Weight: 11.3 carats
Dimensions: 20×13.5×7.5 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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1.8ct Natural Black Opal -Rainbow Rolling Ribbon Pattern

AU$3,719

Opal Details:

Type: Natural Solid Untreated Black Opal
Origin: Lightning Ridge Australia
Dimensions: 12×6.1x4mm (approx.)
Weight: 1.84ct (approx.)

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3.72ct Natural Dark Opal Heart – Multicolor Fire

AU$3,608

Opal Details:

Type: Natural, Solid, Untreated Dark Opal

Origin: Lightning Ridge, Australia

Dimensions: 14.8×15×3mm (approx.)

Weight: 3.72ct (approx.)

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Black Opal 1.75ct Bright Multicolor Fire

AU$3,400

Genuine Australian opal features a rainbow play of color. Polished into an oval cabochon shape, for custom ring design, an October birthstone project, or a rare gem collector gift.

Type: Natural Solid Untreated Black Opal
Origin: Mulga Opal Fields, Lightning Ridge, Australia
Dimensions:12.6 mm x 8.5 mm x 2.5 mm approx
Weight: 1.75 ct approx

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1.81ct Natural Black Opal Chinese Writing Pattern

AU$3,317

1.81ct solid black opal from Lightning Ridge Australia with vivid green teal and blue fire in a rare Chinese writing pattern. Investment grade natural untreated gemstone for collectors and fine jewelry.

Type: Natural Solid Black Opal

Origin: Lightning Ridge Australia

Dimensions: 9.3×8.2×3.9 mm approx

Weight: 1.81ct approx

Color: Bright green teal and blue fire with rare Chinese writing pattern

Cut Shape: Freeform cabochon

Treatment: 100 percent natural untreated opal not a doublet or triplet

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5.67ct Natural Dark Opal Multicolor

AU$3,220

Opal: Natural, Solid, Untreated, Polished
Source: Lightning Ridge, Australia
Dimensions: 14.5×12.3×5.2 mm
Weight: 5.67 ct
(Size and weight are approximate)

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australian-crystal-opal-cabochon-6-94ct-opal-galaxy
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Australian Crystal Opal Cabochon Lightning Ridge 6.94ct

AU$3,192

Genuine Australian opal features bright orange, green, yellow, and cyan fire. A high grade loose gemstone suited for a custom statement ring or luxury pendant.
Type: Natural Solid Crystal Opal
Origin: Lightning Ridge, New South Wales, Australia
Dimensions: 20.6 mm x 11.8 mm x 5.1 mm
Weight: 6.94ct approx
Treatment: None 100 percent natural

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8.67ct Natural Dark Opal Oval Flagstone Pattern

AU$3,053

Opal Details:
Type: Natural Solid Dark Opal
Origin: Lightning Ridge, Australia
Dimensions: 22 × 11.2 × 5 mm
Weight: 8.67ct
(Size and weight are approximate)

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Black Opal 3.75ct Green Multicolor Fire

AU$2,956

Natural Australian black opal with bright multicolor fire with green orange yellow across a polished oval cabochon.
Ideal for opal ring, opal pendant, or high end opal jewelry.

Type: Natural Solid Untreated Black Opal

Origin: Mulga, Lightning Ridge, Australia

Dimensions: 15.4 x 11.1 x 3.4 mm approx
Weight: 3.75ct approx

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26ct Natural Boulder Opal Rainbow Fire

AU$2,859

Opal: 100% Natural, Solid, Untreated, Polished
Source: Winton, QLD, Australia
Dimensions: 28.5x20x6 mm
Weight: 26 ct
(Size and weight are approximate)

This Opal is eligible to purchase on a Payment Plan

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168.3ct Natural Boulder Opal Specimen

AU$2,776

Opal Details:

  • Type: Natural Matrix Boulder Opal Specimen
  • Origin: Winton, Australia
  • Weight: 168.3ct
  • Dimensions: 67.8 × 44.2 × 8.9 mm
  • Play-of-Color: blue and green veins
  • Matrix: Natural ironstone
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Triangular lightning ridge black opal with vivid red dominant color
-30%
Triangular black opal held close showing bright rainbow flash

0.5ct Black Opal – Neon Red Rainbow Fire

Original price was: AU$3,955.Current price is: AU$2,776.

Opal Details:

Type: Natural, Solid, Untreated Black Opal

Origin: Lightning Ridge, Australia

Dimensions: 8.7×6.4×1.9 mm (approx.)

Weight: 0.5ct (approx.)

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13.1ct Natural Crystal Boulder Opal Round

AU$2,776

💎 Opal Details:

  • Type: 100% Natural Pipe Crystal Boulder Opal
  • Origin: Winton, QLD, Australia
  • Dimensions: 18 × 18 × 7 mm
  • Weight: 13.1ct

This item is eligible to purchase on a Payment Plan

Natural Australian Opal

Explore genuine natural Australian opals from the world’s premier opal fields including Lightning Ridge, Queensland, and South Australia. Our collection features stunning black opals with intense color displays, vibrant boulder opals with natural ironstone backing, luminous crystal opals showcasing transparency, and elegant white opals with soft pastel hues. Each opal is ethically sourced, 100 percent natural and untreated, displaying unique play of color with brilliant flashes of red, blue, green, and rainbow patterns that make every stone genuinely irreplaceable.

Shop loose opal gemstones perfect for custom jewelry creation, finished opal rings and pendants in silver, gold, and platinum settings. Whether you are a collector seeking investment quality specimens, a jeweler sourcing premium gemstones, or someone drawn to the mesmerizing beauty of Australian opals, our curated selection delivers exceptional quality, authenticity, and the timeless appeal of Australia’s national gemstone celebrated worldwide as the October birthstone.

Natural Australian Opal FAQs

What is Australian opal?

Australian opal is a precious gemstone formed from silica deposits that displays unique play of color with flashes of blue, green, red, orange, and rainbow hues. Australia produces over 95 percent of the world’s precious opals from mining fields including Lightning Ridge, Queensland, and South Australia, making it the global center for opal production.

What are the different types of Australian opals?

The main types of Australian opals include black opal from Lightning Ridge with dark backgrounds enhancing color displays, boulder opal from Queensland with natural ironstone backing, crystal opal featuring transparency and luminosity, and white opal from South Australia with lighter milky backgrounds and pastel colors.

How do I know if my Australian opal is real?

Real Australian opals display natural play of color that shifts with movement and viewing angle, have irregular patterns unique to each stone, and show depth when examined closely. Doublets and triplets have visible layers when viewed from the side, while solid opals are cut from single pieces. Professional gemological testing can confirm authenticity definitively.

How do I care for my Australian opal jewelry?

Remove opal jewelry before swimming, bathing, or using harsh chemicals. Clean gently with mild soap and lukewarm water using a soft cloth. Avoid extreme temperature changes and prolonged direct sunlight. Store opals separately in soft pouches to prevent scratching from harder gemstones. With proper care, Australian opals remain beautiful for generations.

What is the difference between black opal and white opal?

Black opal features a dark background that makes colors appear more vivid and dramatic, found primarily at Lightning Ridge. White opal has a lighter milky background displaying softer pastel colors, sourced mainly from South Australian fields like Coober Pedy. Both are genuine precious opals with play of color.

Can Australian opals be worn every day?

Yes, Australian opals can be worn daily with reasonable care. Boulder opals are particularly durable due to their natural ironstone backing. Remove opal jewelry during activities involving impacts, chemicals, or extreme temperatures. Rings may require more careful wear than pendants or earrings due to exposure.

Why is Lightning Ridge famous for opals?

Lightning Ridge is famous for producing the world’s finest black opals with exceptional color displays on dark backgrounds. The unique geological conditions in this New South Wales region created over millions of years result in opals found nowhere else on Earth, making Lightning Ridge material highly sought after by collectors worldwide.