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0.8ct Black Crystal Opal Heart – Blue and Violet Fire
AU$527Opal Details:
Type: Natural, Solid, Untreated Black Crystal Opal
Origin: Lightning Ridge, Australia
Dimensions: 7×8.4×2.5mm (approx.)
Weight: 0.8ct (approx.)
1.47ct Natural Dark Opal Multicolor Fire
AU$527100% Natural Solid Dark Opal Polished Stone
Weight: 1.47 ct
Dimensions: 11.5x7x3 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
45.77ct Large Round Oval Koroit Boulder Opal
AU$527Opal Details:
Natural Solid Untreated
Weight: 45.77 ct approx
Dimensions: 30x27x5 mm approx
Source: Koroit,QLD, Australia
28.81ct Natural Boulder Opal – Turquoise Blue Green
AU$527
Opal Details:
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Type: Natural, Solid, Untreated, Polished Boulder Opal
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Origin: Winton, QLD, Australia
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Dimensions: 30 × 18 × 6 mm (approx.)
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Weight: 28.81 ct (approx.)
Rainbow Boulder Opal Pendant Sterling Silver 24.5ct
Original price was: AU$619.AU$526Current price is: AU$526.Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 24.5ctw approx. including pendant and necklace
Dimensions: 7.6 x 20 x 4 mm approx
Color: Rainbow
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Necklace: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal
Sterling Silver Solid Teardrop Boulder Opal Ring 24 ct US 7
Original price was: AU$619.AU$526Current price is: AU$526.Opal: Natural, Solid, Untreated, Polished
Setting Dimensions: 20x15x5 mm
Whole Ring Weight: 24 ct
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US7 (Size Change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Silver Purple Oval Boulder Opal Pendant with Necklace 24.7 ct
Original price was: AU$605.AU$514Current price is: AU$514.Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 30×12.5×5 mm
Whole Pendant Weight: 24.7 ct
(Size and weight are approximate)
Boulder Opal Pendant 23.2ct Sterling Silver
Original price was: AU$605.AU$514Current price is: AU$514.23.2ct solid boulder opal pendant from Queensland, Australia, showing vivid blue fire in polished ironstone. Natural untreated gemstone in sterling silver, gift ready.
Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 23×20.6×5 mm
Whole Pendant Weight: 23.2 ct
(Size and weight are approximate)
16.22ct Natural Boulder Opal Blue Green Fire
AU$513100% Natural Boulder Opal
Weight: 16.22 ct
Dimensions: 33x14x5 mm
Source: Winton, QLD, Australia
1.14ctw Natural Crystal Opal Pair Lightning Ridge
AU$513100% Natural Lightning Ridge Crystal Opal
Total Weight: 1.14 ctw
Dimensions: 10.2x5x1 mm, 10.8×6.5×1.8 mm
Source: Lightning Ridge, NSW, Australia
1.95ct Crystal Boulder Opal
AU$5061.95ct Australian crystal opal with smooth pastel purple body tone and elegant elongated cut. 100% natural and untreated gemstone perfect for fine jewelry, October birthstone designs, or collectors.
Type: Natural Solid Crystal Opal
Origin: Queensland, Australia
Dimensions: 17.3 × 6.7 × 3.0 mm (approx.)
Weight: 1.95 ct (approx.)
Color: Soft pastel purple tone (no fire)
Cut/Shape: Long triangle elongated cut
Treatment: 100% natural, untreated opal (not a doublet or triplet)
0.54ct Natural Black Opal Heart – Green & Violet Fire
AU$506Opal Details:
Type: Natural, Solid, Untreated Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 6.1x8x1.7mm (approx.)
Weight: 0.54ct (approx.)
Black Opal Blue Green Fire 1.51ct
AU$506Type: Natural solid black opal
Origin: Lightning Ridge, Australia
Dimensions: 10.4 × 5.7 × 3.6 mm
Weight: 1.51ct
Treatment: 100% natural, untreated (not a doublet or triplet)
October birthstone gemstone
3.42ct Crystal Opal Parcel 6pcs Calibrated 10x7mm
AU$5063.42ctw natural Australian crystal opal parcel from Coober Pedy featuring six calibrated pear cabochons. Each stone shows bright pastel pink, green, and blue fire with translucent crystal body. Precision matched sizing makes this parcel ideal for earrings, pendants, and fine jewelry designs.
Type: Natural Solid Crystal Opal Parcel
Origin: Coober Pedy, South Australia, Australia
Quantity: 6 calibrated pieces
Total Weight: 3.42ct approx
Individual Size: 10 x 7 x 1.5 mm approx each
Shape: Pear cabochon
Color: Pastel pink, green, and blue fire
Body Type: Crystal opal translucent body
Treatment: 100% natural, untreated opals (not doublets or triplets)
Use: Earrings, pendants, fine jewelry design, gemstone collection
2Pcs Crystal Opal Pair 1.16ctw
AU$5061.16ct Australian crystal opal pair from Coober Pedy featuring brilliant red, green, blue, and orange fire within a translucent body tone. Naturally shaped polished pear cabochons, ideal for earrings, pendants, or custom fine jewelry. 100% natural and untreated October birthstone opals.
Type: Natural Solid Crystal Opal Pair
Origin: Coober Pedy, South Australia, Australia
Quantity: 2 pieces
Total Weight: 1.16 carats approx
Dimensions: L-10.5 × 6.2 × 1.8 mm, S-6 × 4 × 1.8 mm
Shape: Natural pear cabochons (not calibrated)
Color: Brilliant red, green, blue, and orange play of color
Body Tone: Translucent crystal
Cut: Polished, jewelry ready
Treatment: 100% natural untreated opal (not a doublet or triplet)
Use: Perfect for earrings, pendants, custom fine jewelry, or collectors
Boulder Opal Pendant Sterling Silver 24.7ct
Original price was: AU$590.AU$502Current price is: AU$502.Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 24.7ctw approx. including pendant and necklace
Dimensions: 10 x 17.5 x 4.5 mm approx
Color: ocean blue green
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal
Set of 2 Opal Pendants Hand Carved Mauri Voodoo Face Design
Original price was: AU$590.AU$502Current price is: AU$502.Natural Solid Untreated Australian Boulder Opal Polished Stone with Adjustable Necklace
Weight: 125 carats each
Dimensions: 49x25x10mm
Source: Winton, QLD, Australia
Size and weight are approximate
34.5ct Boulder Opal Pendant Chocolate w/ Rainbow Vein
Original price was: AU$590.AU$502Current price is: AU$502.Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Koroit, Queensland, Australia
Dimensions: 30x17x6mm
Whole Pendant Weight: 34.5 ct
(Size and weight are approximate)
6.02ctw Natural Boulder Opal Set Blue Green
AU$499100% Natural Solid Boulder Opals
Total Weight: 6.02 btw
Size: Marquise – 24×5.5×3.8 mm
Oval – 9.5x5x3 mm
Source: Winton,Qld,Australia
1.08ct Crystal Opal Lightning Ridge
AU$499Natural Solid Untreated Crystal Opal Polished Stone
Weight: 1.08 ct
Dimensions: 10x6x2.5 mm
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.