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Black Opal 1.67ct Bright Multicolor Fire
AU$6,748Natural Australian black opal with bright multicolor fire with dominant orange, red, and yellow, supported by green, blue, and pink flashes across a polished oval cabochon. Ideal for opal ring, opal pendant, or high end opal jewelry.
Type: Natural Solid Untreated Black Opal
Origin: Lightning Ridge Australia
Dimensions: 8.8 x 7.8 x 3.6 mm approx
Weight: 1.67ct approx
2.12ct Natural Black Crystal Opal Neon Fuchsia Rainbow Fire
AU$6,319Opal Details:
Type: Natural Solid Untreated Black Crystal Opal
Origin: Lightning Ridge Australia
Dimensions: 12.6×6.6×4.5mm approx
Weight: 2.12ct approx
Natural Black Crystal Opal from Lightning Ridge Australia
Neon fuchsia fire with rainbow color spectrum
Highly polished teardrop with dark crystal body tone
Perfect for rings pendants or custom designer settings
October birthstone with vibrant visual energy
1.1ct Black Opal Bright Red and Multicolor Fire
AU$6,1861.1ct natural solid black opal from Lightning Ridge Australia features vivid cherry red, orange, blue, green, and cyan fire across its polished cabochon surface. This untreated gemstone is perfect for October birthstone jewelry, ready to set into a custom engagement ring, pendant, or collector’s piece.
Type: Natural Solid Black Opal, Untreated
Origin: Lightning Ridge, NSW, Australia
Dimensions: 8.3 x 6.8 x 3.1 mm (approx.)
Weight: 1.1 ct (approx.)
Color: Bright cherry red, orange, green, blue, cyan fire with black body tone
Cut/Shape: Oval polished cabochon
Treatment: 100% natural, untreated opal (not a doublet or triplet)
36.28ct Top Gem Crystal Boulder Opal Heart
Original price was: AU$12,751.AU$6,186Current price is: AU$6,186.Opal Details:
Natural Solid Untreated Australian Boulder Opal Polished Stone
Weight: 36.28 carats
Dimensions: 22x25x11 mm
Source: Winton, QLD, Australia
Size and weight are approximate
Purple Winton Crystal Boulder Opal for Pendant 31.95 ct
Original price was: AU$12,653.AU$6,186Current price is: AU$6,186.Opal: Natural, Solid, Untreated, Polished
Source: Winton, QLD, Australia
Weight: 31.95 ct
Dimensions: 42x18x8 mm
Size and weight are approximate
Black Opal 1.41ct Red Multicolor Fire
AU$5,947Natural 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
1.46ct Natural Black Opal Teardrop Turquoise Blue Green
AU$5,595Dimensions: 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
5.91ct Solid Black Opal Vivid Neon Blue Green Fire
Original price was: AU$7,135.AU$5,483Current price is: AU$5,483.Type: Natural, Solid, Untreated Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 19.5×8.5×5mm approx.
Weight: 5.91ct approx.)
0.84ct Black Opal Metallic Neon Rainbow Fire
AU$4,9210.84ct Lightning Ridge black opal loose stone with neon red orange yellow green blue fire. Natural untreated polished cabochon for fine jewelry design or collector gemstone.
Type: Natural Solid Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 9.1×7.2×2.1 mm approx
Weight: 0.84ct approx
Color: Neon red, orange, yellow, green, cyan, blue fire
Cut/Shape: Teardrop cabochon
Treatment: 100% natural, untreated opal (not a doublet or triplet)
1.81ct Black Opal Golden Yellow Green Blue Fire
Original price was: AU$7,311.AU$4,639Current price is: AU$4,639.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
Dark Opal 1.85ct Neon Multicolor Fire
AU$4,499Natural 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
11.3 ct Half Moon Crystal Boulder Opal – Blue Green
AU$4,499Opal 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
6.9 ct Natural Crystal Opal – Oval Vivid Multicolor
AU$4,499
Opal Details:
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Type: 100% Natural, Solid, Untreated, Polished Crystal Opal
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Origin: Lightning Ridge, NSW, Australia
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Dimensions: 21 × 12 × 5 mm (approx.)
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Weight: 6.9 ct (approx.)
2.8ct Dark Opal
AU$4,1682.80ct solid Australian dark opal from Lightning Ridge featuring vivid rainbow fire with red, green, blue, cyan, yellow, and pink flashes. Polished oval cabochon cut ideal for a fine opal ring or pendant. Natural untreated October birthstone with strong brilliance and contrast.
Type: Natural Solid Dark Opal
Origin: Lightning Ridge, New South Wales, Australia
Weight: 2.80ct
Dimensions: approx. 11.7 x 8.6 x 4.6mm
Color: Vivid rainbow fire with red, green, blue, cyan, yellow, and pink
Cut / Shape: Oval cabochon
Treatment: 100% natural, untreated opal (not a doublet or triplet)
1.8ct Natural Black Opal -Rainbow Rolling Ribbon Pattern
AU$3,768Opal Details:
Type: Natural Solid Untreated Black Opal
Origin: Lightning Ridge Australia
Dimensions: 12×6.1x4mm (approx.)
Weight: 1.84ct (approx.)
3.72ct Natural Dark Opal Heart – Multicolor Fire
AU$3,655Opal Details:
Type: Natural, Solid, Untreated Dark Opal
Origin: Lightning Ridge, Australia
Dimensions: 14.8×15×3mm (approx.)
Weight: 3.72ct (approx.)
6.84ct Natural Dark Opal – Oval Neon Multicolor
AU$3,599100% Natural Dark Opal (Semi Black Opal)
Weight: 6.84 ct
Dimensions: 20x14x4 mm
Source: Lightning Ridge, NSW, Australia
1.81ct Natural Black Opal Chinese Writing Pattern
AU$3,3601.81ct 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
5.67ct Natural Dark Opal Multicolor
AU$3,262Opal: 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)
5.01ct Natural Dark Opal Red Green Fire
AU$3,163Opal: Natural, Solid, Untreated, Polished
Source: Lightning Ridge, Australia
Dimensions: 16x14x3.5 mm
Weight: 5.01 ct
(Size and weight are approximate)
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.