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Blue Winton Boulder Opal 5 ct

AU$444

Natural Solid Untreated Boulder Opal Polished Stone
Weight: 5 carats
Dimensions: 16.5×8.5×3.2 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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Wood Fossil Boulder Opal Pendant 52.5ct

AU$444

💎 Opal Details:

Type: Natural, Solid, Untreated Polished Wood Fossil Boulder Opal

Origin: Queensland, Australia

Dimensions: 41.5 × 22 × 7.5 mm (approx.)

Weight: 52.5ct (approx.)

💎 Necklace Details:

Type: Adjustable Slide Knot Cord

Color: Brown

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5.38ct Natural Crystal Boulder Opal

AU$444

Natural Solid Untreated Australian Pipe Crystal Boulder Opal Polished Stone
Weight: 5.38 carats
Dimensions: 15x10x3 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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1.06 ct Dark Opal Heart

AU$444

Natural Solid Untreated Australian Dark Opal / Semi Black Opal Polished Stone
Weight: 1.06 carats
Dimensions: 7x9x2 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate

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Boulder Opal Pendant 32ct

AU$444

Type: Natural Solid Untreated Boulder Opal

Origin: Winton, Queensland, Australia

Dimensions: 31 × 22 × 7 mm approx

Weight: 32ct approx

Color: Blue and green fire with earthy sandstone matrix

Necklace: Adjustable black cord gift ready

Use: Statement pendant unisex jewelry collector piece

 

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Koroit Boulder Opal Pendant 48ct

AU$444

Type: Natural Solid Untreated Polished Boulder Opal

Origin: Koroit, Queensland, Australia

Dimensions: 25 × 25 × 8 mm approx

Weight: 48ct approx

Color: Brown ironstone with fiery rainbow sparkling fire veins of green blue purple

Shape: Triangular pendant, solid untreated opal for statement jewelry

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16 ct hand carved boulder opal pendant from Winton Australia with purple blue opal seam in brown matrix and sterling silver setting
New
Natural purple blue Australian boulder opal pendant shown worn on a silver chain with rectangular hand carved ironstone matrix

Silver Boulder Opal Pendant Hand Carving 16 ct

AU$444
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Australian Crystal Opal Earrings Sterling Silver

AU$440

Genuine Australian crystal opal earrings set in sterling silver. Comes with a gift box and jewelry cleaning cloth.

Metal: Solid Sterling Silver (Stamped 925)
Opal Type: Natural Australian Crystal Opal
Gemstone: Cubic Zirconia
Earring Size: 10.5mm x 8.86mm approx
Total Weight: 9.7 ct approx

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1.34ct Crystal Opal Pair 2pcs Calibrated 10x7mm 8x5mm

AU$437

1.34ct total natural Australian crystal opal pair from Coober Pedy featuring vivid green, blue, and golden fire. Freeform pear shapes, not calibrated, ideal for custom earrings, pendants, or bespoke fine jewelry. 100% natural solid opals and October birthstone gemstones.

Type: Natural Solid Crystal Opal Pair
Origin: Coober Pedy, South Australia
Total Weight: 1.34 carats (approx.)
Stone 1 Dimensions: 10 x 7 x 2.5 mm (approx.)
Stone 2 Dimensions: 8 x 5 x 1.5 mm (approx.)
Color: Vivid green, blue, yellow, and multicolor fire
Cut / Shape: Freeform pear cabochons (not calibrated)
Treatment: 100% natural and untreated (not doublet or triplet)
Use: Custom earrings, pendant pair, bespoke fine jewelry, collector stones

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1.09ct Crystal Opal Pair 2pcs Calibrated 10x7mm 5x5mm

AU$437

Opal: Natural, Solid, Untreated, Polished, Transparent, Calibrated
Source: Andamooka, Australia
Dimensions: Oval – 10x7x2 mm / Round – 5x5x2 mm
Total Weight: 1.09 ctw
(Size and weight are approximate)

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Opal Doublet Set Freeform Multicolor Fire 2.41ct

AU$416

Type: Australian opal doublet parcel
Origin: Australia
Weight: approximately 2.41 ct total
Dimensions: 15.1 x 7.9 mm and 8.9 x 5.3 mm
Colour: orange, yellow, green and blue play of colour
Shape: marquise polished cabochons
Treatment: opal doublet construction (genuine opal layer bonded to ironstone backing)

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Sterling Silver Green Oval Boulder Opal Ring 35 ct US9

AU$416

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 22×14.5×7 mm approx
Whole Ring Weight: 35 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: US9 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver

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3.91ct Natural Boulder Opal Blue Fire

AU$416

100% Natural Solid Boulder Opal Polished Stone
Weight: 3.91 ct
Dimensions: 16.5×6.5×3.5 mm
Source: Winton,QLD, Australia
Size and weight are approximate

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4.53ct Natural Crystal Boulder Opal

AU$416

Natural Solid Untreated Australian Pipe Crystal Boulder Opal Polished Stone
Weight: 4.53 carats
Dimensions: 17×7.5×4 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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3.91ct Natural Crystal Boulder Opal

AU$416

Natural Solid Untreated Australian Pipe Crystal Boulder Opal Polished Stone
Weight: 3.91 carats
Dimensions: 10.5x9x4 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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3.5ct Natural Crystal Boulder Opal

AU$416

Natural Solid Untreated Australian Crystal Boulder Opal Polished Stone
Total Weight: 3.5 carats
Dimensions: 17.5x9x4mm
Source: Winton, QLD, Australia
Item code : PP300
Size and weight are approximate

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49.5 ct purple boulder opal wood fossil pendant from Winton Australia set in rhodium plated S925 sterling silver
New
49.5 ct purple boulder opal pendant from Winton Australia with wood fossil matrix shown worn on a black necklace

Silver Boulder Opal Pendant Wood Fossil 49.5 ct

AU$416
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39 ct purple boulder opal pendant from Winton Australia with natural wood fossil matrix and sterling silver setting
New
Australian wood fossil boulder opal pendant shown worn on a black necklace with natural purple opal and brown matrix

Silver Boulder Opal Pendant Wood Fossil 39 ct

AU$416
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Silver Boulder Opal Pendant Hand Carved 22.9 ct-nn658 - Frotn shot
New
Natural Winton boulder opal pendant shown worn on a black necklace with blue green opal and hand carved brown matrix

Silver Boulder Opal Pendant Hand Carved 22.9 ct

AU$416
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Opal Earrings Studs 14K Yellow Gold

AU$414

Brilliant multicolor Fire Australian opal stud earrings set in solid 14K yellow gold. 

Metal: Solid 14K Yellow Gold (Stamped)
Opal Type: Australian Opal Doublet
Opal Color: Orange, Yellow, Green Blue
Stone Size: 4 mm round approx
Total Weight: 3.29ct

Select options This product has multiple variants. The options may be chosen on the product page

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.