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Opal Doublet 6.4ct Calibrated 15x10mm 9x7mm
AU$492Calibrated Australian opal doublet matching set totaling 6.4ctw, including one 15x10mm oval and two 9x7mm ovals. Displays vivid pink, orange, yellow, green, blue, and cyan fire. Ideal for coordinated earring and pendant jewelry designs.
Stone Type: Australian Opal Doublet
Quantity: 3 stones (matched set)
Total Weight: 6.4ctw approx
Dimensions:15 × 10 mm / 9 × 7 mm
Color: Pink, orange, yellow, green, blue, cyan
Shape: Oval calibrated cabochon
Treatment: Opal doublet (natural crystal opal bonded to ironstone)
Suitable For: Earrings, pendant center stone, matching jewelry sets, fine jewelry design
2.04ct Crystal Boulder Opal
AU$4922.04ct Australian crystal boulder opal showing bright flashes of orange, yellow, and green across its pastel translucent body. 100% natural and untreated gemstone ideal for fine jewelry or October birthstone collections.
Type: Natural Solid Crystal Boulder Opal (Pipe Opal)
Origin: Queensland, Australia
Dimensions: 15 × 7.2 × 3 mm (approx.)
Weight: 2.04 ct (approx.)
Color: Orange, yellow, green fire
Cut/Shape: Freeform teardrop cabochon
Treatment: 100% natural, untreated opal (not a doublet or triplet)
1.7ct Natural White Opal Heart Coober Pedy
AU$492Opal Details:
Type: Natural Solid Untreated White Opal
Origin: Coober Pedy Australia
Dimensions: 9.1×11.1×2.8mm approx
Weight: 1.7ct approx
1.36ct Natural Black Opal Blue Fire Teardrop
AU$492100% Natural Solid Black Opal Polished Stone
Weight: 1.39 ct
Dimensions: 9×7×3 mm
Source: Lightning Ridge, NSW, Australia
(Size and weight are approximate)
2.06ct Natural Crystal Boulder Opal
AU$492100% Natural Solid Crystal Opal Polished Stone
Weight: 2.06 ct
Dimensions: 11×7.5×3 mm
Source: Queensland, Australia
Size and weight are approximate
Transparent
24.8ct Solid Boulder Opal Electric Blue Purple Fire
AU$49224.80ct natural solid boulder opal from Winton, Australia, features bright electric blue and purple fire. Untreated and genuine, a perfect centerpiece for custom rings, pendants, or unique jewelry creations.
1.3ct Natural Crystal Opal Lightning Ridge
AU$485Natural Solid Untreated Australian Crystal Opal Polished Stone
Weight : 1.3 ct
Dimension : 10.5×7.5×2.5 mm
Source : Lightning Ridge, NSW, Australia
(Size and weight are approximate
Opal Doublet Parcel Calibrated 8x5mm
AU$478Australian opal doublet parcel with calibrated 8x5mm teardrop stones showing electric green multicolor fire. Ideal for earrings, rings, pendants, and jewelry making.
Stone Type: Australian Opal Doublet
Size: 8 × 5 mm approx (calibrated)
Total Weight: 4.03 ctw approx
Origin: Coober Pedy, Australia
Suitable For: Earrings, rings, pendants, custom jewelry
Opal Doublet Parcel Calibrated 8x5mm
AU$478Australian opal doublet stones with bright multicolor fire in calibrated teardrop shapes, ideal for earrings, rings, pendants, and jewelry making.
Stone Type: Australian Opal Doublet
Size: 8 × 5 mm approx (calibrated)
Total Weight: 2.09 ctw approx
Origin: Coober Pedy, Australia
Suitable For: Earrings, rings, pendants, custom jewelry
Opal Doublet Pair 1.96ct
AU$478Australian opal doublet set with Vivid red and multicolor fire. Ideal for custom ring and pendant designs.
Stone Type: Australian Opal Doublet
Size : Round 4mm round approx
Size: 7.6 x 11.1mm approx
Total Weight: 1.96ctw approx
Origin: Australia
Suitable For: Rings, pendants, earrings, custom jewelry
Sterling Silver Aqua Blue Boulder Opal Ring US 7 3/4
Original price was: AU$562.AU$478Current price is: AU$478.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 21×12.5×5 mm
Whole Ring Weight: 23.5 ct
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US7 3/4 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Size and weight are approximate
Sterling Silver Blue Triangle Boulder Opal Ring 17 ct US 7
Original price was: AU$562.AU$478Current price is: AU$478.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 14x14x5 mm approx
Whole Ring Weight: 17 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: US7 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
30.5ct Silver Boulder Opal Pendant Blue Green Fire
Original price was: AU$562.AU$478Current price is: AU$478.30.5ct 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)
Silver Koroit Boulder Opal Pendant Necklace 49 ct
Original price was: AU$562.AU$478Current price is: AU$478.49ct solid Koroit boulder opal silver pendant from Queensland Australia showing bright green and blue fire. 100% natural untreated gemstone jewelry perfect for collectors and October birthstone gifts.
Type: Natural Solid Koroit Boulder Opal Silver Pendant
Origin: Koroit Queensland Australia
Dimensions: 27x21x8 mm approx
Weight: 49 ct approx
Color: Bright green and blue fire with ironstone matrix
Cut/Shape: Oval cabochon polished
Setting: S925 rhodium plated sterling silver
Treatment: 100% natural untreated opal
Silver Purple Boulder Opal Pendant with Necklace 78 ct
Original price was: AU$562.AU$478Current price is: AU$478.Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Koroit, Queensland, Australia
Dimensions: 50x30x5.5mm
Whole Pendant Weight: 78 ct
(Size and weight are approximate)
19.5ct Boulder Opal Pendant Rectangle Blue-Green
Original price was: AU$562.AU$478Current price is: AU$478.Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 24.5×11.5×4.5 mm
Whole Pendant Weight: 19.5 ct
(Size and weight are approximate)
Silver Australian Boulder Opal Pendant with Necklace 22.1 ct
Original price was: AU$562.AU$478Current price is: AU$478.Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 26.5×12.7×4.7 mm
Whole Pendant Weight: 22.1 ct
(Size and weight are approximate)
Boulder Opal Ring 30ct Sterling Silver US9
Original price was: AU$555.AU$472Current price is: AU$472.Deep purple and electric blue fire define this natural Australian boulder opal ring. Large rectangular bezel set in sterling silver, perfect for a bold statement and October birthstone jewelry.
Ring Size: US9 (size change not available)
Dimensions: 19 x 15 x 5.5 mm approx.
Weight: 30ct approx. (whole ring)
Origin: Queensland, Australia
Opal Type: Natural Solid Boulder Opal
Treatment: None (100% natural, not a doublet or triplet)
Metal: S925 sterling silver, rhodium plated
Ring Band: 3.5 mm
Sterling Silver Blue Purple Boulder Opal Ring 19 ct US 7
Original price was: AU$555.AU$472Current price is: AU$472.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 19x11x5mm approx
Whole Ring Weight: 19 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US7 (Size change is not available)
Note: Opal contains a minor hairline fracture
Sterling Silver Blue Rectangle Boulder Opal Ring 22 ct US 7
Original price was: AU$555.AU$472Current price is: AU$472.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 16.5×11.5×4.5 mm approx
Whole Ring Weight: 22 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: US7 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
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.