Explore opals by type
Black Opal
Boulder Opal
Pipe Opal
Crystal Opal
White Opal
Opal Jewelry
Explore opals by shape
Oval
Teardrop
Heart
Round
Square
Freeform
Filters
Boulder Opal Pendant 21ct
AU$46321ct solid boulder opal from Queensland, Australia, shows vivid blue and green fire with fossil wood matrix. 100% natural, untreated drilled gemstone pendant, ideal for daily wear, custom opal jewelry, and collectors.
Boulder Opal Pendant 43ct
AU$24943ct natural Australian boulder opal pendant from Queensland with pink, orange and green fire in brown ironstone. 100% natural, drilled, untreated gemstone necklace on adjustable cord, perfect as unisex opal jewelry, October birthstone pendant, and gift ready jewelry.
Boulder Opal Pendant 27ct Blue Green Fire
AU$19227ct boulder opal pendant with vivid blue and green fire in natural ironstone. Solid, untreated Australian opal on adjustable cord, ready to wear.
Dimensions: 20.5 × 15 × 6.5 mm approx
Weight: 27 ct approx
Origin: Koroit, Queensland Australia
Opal Type: Natural Solid Boulder Opal
Necklace: Cream adjustable cord
Treatment: 100% natural untreated opal
33.5ct Natural Boulder Opal Pendant Blue Green fire
AU$54933.5ct natural wood replacement boulder opal pendant from Winton, Queensland, Australia, vivid blue and green fire in rich brown ironstone. 100% natural, untreated gemstone necklace, ideal for October birthstone jewelry and opal collectors.
Boulder Opal Pendant 75ct
AU$47075ct Solid Boulder Opal pendant from Winton Queensland Australia with purplish blue fire across natural brown matrix. 100% natural untreated ready to wear jewelry perfect for collectors and opal lovers.
Boulder Opal Pendant 68ct
AU$22168ct Solid Boulder Opal pendant from Queensland Australia with vivid blue and purple veins across natural brown matrix. 100% natural untreated ready to wear jewelry perfect for collectors and opal lovers.
Boulder Opal Pendant 176ct
AU$328176ct Solid Boulder Opal pendant necklace from Winton, Queensland, Australia. Blue veins across a natural brown matrix. Black adjustable necklace 100% natural untreated Opal ready to wear jewelry perfect for collectors and opal lovers.
2.65ct Solid Black Opal Pear Green Blue Fire
AU$9,305Type: Natural Solid Untreated Black Opal
Origin: Lightning Ridge Australia
Dimensions: 10.6×9.4×4.3mm approx
Weight: 2.65ct approx
Color: Electric green and blue fire in vivid rolling pattern
Shape: Pear shape gemstone perfect for fine jewelry
1.46ct Natural Black Opal Teardrop Turquoise Blue Green
AU$5,672Dimensions: 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
3.95ct Certified Black Opal Chinese Writing Pattern
AU$26,7903.95ct natural solid black opal from Lightning Ridge, Australia featuring rare Chinese writing pattern with neon gold yellow and green fire, Includes gemologist certificate. Expertly cut and polished, untreated and authentic. Ideal for high end ring or pendant jewelry and a premium October birthstone collector gemstone.
Type: Natural solid black opal gemstone
Pattern: Chinese writing
Origin: Lightning Ridge, NSW, Australia
Weight: 3.95ct approx
Dimensions: 12.2 x 11.4 x 5 mm approx
Color: Neon gold yellow and green fire on dark body tone
Cut Shape: Freeform cabochon
Treatment: 100% natural and untreated (not a doublet or triplet)
Certification: Includes gemologist certificate
2.12ct Natural Black Crystal Opal Neon Fuchsia Rainbow Fire
AU$6,405Opal 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
1.6ct Natural Black Opal Oval Neon Rainbow Fire
AU$7,025Type: Natural Solid Untreated Black Opal
Origin: Lightning Ridge Australia
Dimensions: 10.7×7.7x3mm approx
Weight: 1.6ct approx
Natural solid untreated black opal from Lightning Ridge
Brilliant neon rainbow fire with unicorn tones
Ideal for opal jewelry design such as ring or pendant
Ethically sourced and cut to showcase its natural beauty
October birthstone with vibrant symbolic meaning
Boulder Opal Pendant 31ct
AU$420Opal Details:
Type: Natural Solid Untreated Boulder Opal
Origin: Winton Queensland Australia
Dimensions: 25x16x6mm approx
Weight: 31ct approx
Necklace Details:
Type: Adjustable Slide Knot Cord
Color: Black
2.03ct White Opal Heart Vivid Pink Blue Green Fire
AU$1,183Type: Natural Solid Untreated White Opal
Origin: Coober Pedy, Australia
Dimensions: 8.7×10.5×3.8mm (approx.)
Weight: 2.03ct (approx.)
Black Opal 9.82ct Certified Neon Rainbow Fire Butterfly Wing
AU$32,2629.82ct certified Lightning Ridge black opal displaying full spectrum rainbow fire in a defined radiating broad flash pattern. Solid natural untreated Australian opal suited for high end jewelry or serious gemstone holding. Certificate included.
Dimensions: 26.94 × 18 × 3.7 mm approx
Origin: Lightning Ridge Australia
Opal Type: Natural Solid Black Opal
Weight: 9.82 ct approx
Certification: Certified Report includes
Shape: Freeform polished cabochon
Treatment: 100% natural untreated opal
1.7ct Natural White Opal Heart Coober Pedy
AU$499Opal Details:
Type: Natural Solid Untreated White Opal
Origin: Coober Pedy Australia
Dimensions: 9.1×11.1×2.8mm approx
Weight: 1.7ct approx
1.8ct Natural Black Opal -Rainbow Rolling Ribbon Pattern
AU$3,819Opal Details:
Type: Natural Solid Untreated Black Opal
Origin: Lightning Ridge Australia
Dimensions: 12×6.1x4mm (approx.)
Weight: 1.84ct (approx.)
11.13ct Natural Dark Opal – Oval Pastel Sunset Fire
AU$926Opal Details:
Type: Natural Solid Untreated Dark Opal
Origin: Lightning Ridge Australia
Dimensions: 23×16.2×4.7mm approx
Weight: 11.13ct approx
13.74ct Natural Dark Opal – Rectangle Sparkling Muticolor Pinfire
AU$1,924Opal Details:
Type: Natural Solid Untreated Polished Dark Opal
Origin: Lightning Ridge Australia
Dimensions: 24.9×11.4×5.5mm (approx.)
Weight: 13.74ct (approx.)
Metallic Green Fire Lightning Ridge Black Opal Teardrop 1 ct
AU$876Natural Solid Untreated Black Opal Polished Stone
Weight: 1 carat
Dimensions: 8.5x5x4mm
Source: Lightning Ridge, NSW, Australia
(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.