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5.01ct Natural Dark Opal Red Green Fire
AU$3,206Opal: Natural, Solid, Untreated, Polished
Source: Lightning Ridge, Australia
Dimensions: 16x14x3.5 mmÂ
Weight: 5.01 ctÂ
(Size and weight are approximate)
3.05ct Natural Black Opal Green Blue
AU$1,7103.05ct Lightning Ridge black opal loose stone with vivid blue and green fire. Natural solid cabochon ready to set into jewelry or add to a collection.
Opal: Natural Solid Untreated Black Opal
Origin: Lightning Ridge Australia
Dimensions: 12.7×8.7×4.2 mm approx
Weight: 3.05 ct approx
Color: Vivid blue and green fire on dark body tone
Cut Shape: Polished cabochon
Treatment: 100% natural untreated opal not a doublet or triplet
1.52ct Natural Black Opal – Oval Green Blue
AU$1,375
 Opal Details:
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Type: 100% Natural, Solid, Untreated, Polished Black Opal
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Origin: Lightning Ridge, NSW, Australia
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Dimensions: 9.5 × 7.5 × 3.2 mm (approx.)
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Weight: 1.52ct (approx.)
3.06ct Black Opal Green Blue
AU$3,135Opal Type: Natural Solid Black Opal
Origin: Lightning Ridge, NSW, Australia
Weight: 3.06 carats approx
Dimensions: 11.5 × 8.2 × 5 mm approx
Color: Vivid blue and green fire
Cut Shape: Oval cabochon
Treatment: 100 percent natural and untreated
Use: Ring stone, pendant, fine jewelry, collector gemstone
Birthstone: October
1.81ct Black Opal Golden Yellow Green Blue Fire
Original price was: AU$7,410.AU$4,703Current price is: AU$4,703.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
Black Opal Teardrop – 2.84 ct Green Blue Fire Gemstone
AU$2,387Opal: Natural, Solid, Untreated, Polished
Source: Lightning Ridge, Australia
Dimensions: 18.5×8.5×2.8 mm
Weight: 2.84 ct
(Size and weight are approximate)
2.42ct Natural Dark Opal Teardrop Pink Green
AU$9632.42ct Natural Solid Dark Opal Teardrop from Lightning Ridge Australia with vivid pinkish red, green and blue fire. 100% untreated opal, perfect for opal rings, opal pendants, opal jewelry and collectors.
4.84ct Natural Black Opal Heart Neon Green
AU$1,817💎 Opal Details:
- Type: Natural, Solid, Untreated, Polished Black Opal
- Origin: Lightning Ridge, Australia
- Dimensions: 14 × 15 × 4 mm (approx.)
- Weight: 4.84ct (approx.)
1.56ct Solid Black Opal Oval Neon Green Gold Yellow
Original price was: AU$13,338.AU$8,550Current price is: AU$8,550.Type: 100% Natural Solid Black Opal, Untreated, Polished
Origin: Lightning Ridge, NSW, Australia
Dimensions: 9.6 × 7.5 × 3.6 mm approx.
Weight: 1.56ct approx.
3.72ct Natural Dark Opal Heart – Multicolor Fire
AU$3,705Opal Details:
Type: Natural, Solid, Untreated Dark Opal
Origin: Lightning Ridge, Australia
Dimensions: 14.8×15×3mm (approx.)
Weight: 3.72ct (approx.)
Neon Bright Fire Australian Dark Opal 1.21 ct
AU$1,297Opal: Natural, Solid, Untreated, Polished
Dimensions: 10×6.7×3.2 mm
Weight: 1.21 ct
Source: Lightning Ridge, NSW, Australia
(Size and weight are approximate)
Multi Color Fire Australian Dark Opal 2.49 ct
AU$1,325Opal: Natural, Solid, Untreated, Polished
Dimensions: 13.4×7.3×4 mm
Weight: 2.49 ct
Source: Lightning Ridge, NSW, Australia
(Size and weight are approximate)
Bright Blue Fire Black Opal 1.22 ct
AU$1,233Opal: Natural, Solid, Untreated, Polished
Source: Lightning Ridge, Australia
Dimensions: 8.5x7x3.4 mm approx
Weight: 1.22 ct approx
(Size and weight are approximate)
Dark Opal 5.43ct Red and Multicolor Fire
AU$1,660Bright red multicolor fire Australian opal from Lightning Ridge. Ideal as a center stone for an opal ring, opal pendant, or fine opal jewelry, and a striking October birthstone gemstone.
Opal: Natural Dark Opal (Semi Black Opal)
Source: Lightning Ridge, Australia
Dimensions: 13.8 x 11.4 x 5.3 mm approx
Weight: 5.43ct approx
Boulder Opal Ring 27ct Sterling Silver US8
AU$748Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 23x15x6 mm approx
Whole Ring Weight: 27 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: U8 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Boulder Opal Pendant 26.8 ct, Sterling Silver Green Flash Opal
AU$684Pendant: S925 Stamped Sterling Silver with Rhodium Plated
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 32x13x3.5 mm approx
Whole Pendant Weight: 26.8 ct approx
Boulder Opal Pendant 26 ct, Sterling Silver Blue Purple Opal
AU$641Pendant: S925 Stamped Sterling Silver with Rhodium Plated
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 31x17x5 mm approx
Whole Pendant Weight: 26 ct approx
30.5ct Silver Boulder Opal Pendant Blue Green Fire
AU$57030.5ct solid boulder opal silver pendant from Winton, Queensland, Australia, shows vivid blue and green fire. 100% natural, untreated gemstone, perfect for statement opal jewelry and collectors.
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Type: Natural Solid Boulder Opal Silver Pendant
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Origin: Winton, Queensland, Australia
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Dimensions: 22 × 21 × 7 mm approx.
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Weight: 30.5ct approx.
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Color: Vivid blue and green fire with ironstone matrix
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Setting: S925 stamped sterling silver pendant
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Necklace: Ready to wear, gift ready
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Treatment: 100% natural, untreated (not a doublet or triplet)
Sterling Silver Boulder Opal Ring US 9
AU$1,425Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 19×13.5×5.5 mm
Whole Ring Weight: 27.5 ct
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US9 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Size and weight are approximate
Sterling Silver Purple Boulder Opal Ring 30 ct US 8
AU$1,254Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 27x15x5.5 mm
Whole Ring Weight: 30 ct
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US8 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
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.