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0.98ct Natural Black Opal – Oval Blue Green

AU$832

Opal: Natural, Solid, Untreated, Polished
Dimensions: 8.2×6.9×2.7 mm
Weight: 0.98 ct
Source: Lightning Ridge, NSW, Australia
(Size and weight are approximate)

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Blue Green Boulder Opal 24.87 ct

AU$832

Natural Solid Untreated Australian Boulder Opal Polished Stone
Weight: 24.87 carats
Dimensions: 31.5x19x5 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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Close view of 37.3 ct purple boulder opal pendant from Winton Australia set in rhodium plated sterling silver
New
Natural 37.3 ct purple Australian boulder opal pendant shown worn on a silver necklace

Silver Boulder Opal Pendant Purple 37.3 ct

AU$832
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76.4 ct lilac purple crystal boulder opal pendant from Winton Australia set in rhodium plated S925 sterling silver
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Large Australian crystal boulder opal pendant with purple and pink color shown worn on a silver chain

Silver Crystal Boulder Opal Pendant Large Lilac Purple 76.4 ct

AU$832
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60.4 ct purple boulder opal pendant from Winton Australia with natural brown matrix and S925 sterling silver setting
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Natural 60.4 ct Winton boulder opal pendant shown worn on a black necklace with rich purple color and brown matrix

Silver Boulder Opal Pendant 60.4 ct

AU$825
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Australian Boulder Opal Multicolor Fire 1.98ct

AU$825

Genuine Australian boulder opal features bright multicolor fire. Ready to make into a custom ring or jewelry design.
Dimensions: 12.1 mm x 6.4 mm x 2.8 mm
Type: Solid Natural Boulder Opal
Origin: Winton, Queensland, Australia
Weight: 1.98ct
Treatment: 100% natural untreated opal (not a doublet or triplet)

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Australian Boulder Opal Metallic Fire 0.89ct

AU$825

Genuine Australian boulder opal features multicolor fire. Ready to make into a custom ring or jewelry design.
Dimensions: 8.7 mm x 5.4 mm x 2.6 mm
Type: Solid Natural Boulder Opal
Origin: Winton, Queensland, Australia
Weight: 0.89ct
Treatment: 100% natural untreated opal (not a doublet or triplet)

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Sterling Silver Sparkling Boulder Opal Ring US 8

AU$825

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 20.5x10x5 mm
Whole Ring Weight: 21 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

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Sterling Silver Purple Boulder Opal Ring US7

AU$825

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 14×13.5×4 mm approx
Whole Ring Weight: 20 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: U7 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver

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Purple Blue Winton Boulder Opal 22.32 ct

AU$825

100% Natural Solid Untreated Boulder Opal Polished Stone
Weight: 22.32 ct
Dimensions: 37x17x4.8 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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1.63ct Natural Faceted Crystal Opal – Cushion Cut

AU$818

Opal Details:
Type: Natural, Solid, Untreated, Faceted Crystal Opal

Origin: Andamooka, Australia

Dimensions: 9 × 8 × 4.5 mm (approx.)

Weight: 1.63ct (approx.)

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Boulder Opal Ring Sterling Silver Size 8 1/2

AU$804

Type: Boulder Opal Ring
Opal: Natural Australian Boulder Opal
Accent Stone: Faceted Amethyst
Metal: Sterling Silver
Design: Open Shank Ring
Setting: Bezel set opal with prong set amethyst
Ring Size: Adjustable (approx. size 8 to 9)
Opal Weight: 1.57ct
Amethyst Weight: 0.44ct
Total Weight: 10.9ctw

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Boulder Opal Pendant Sterling Silver Deep Blue Purple 24.5ct

AU$804

Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 24.5 ctw approx. including pendant and necklace
Dimensions: 8 x 19.5 x 3.7 mm approx
Color: deep blue purple
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal

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2.96ct Dark Opal Green Blue Fire

AU$804

2.96ct semi black opal from Lightning Ridge, Australia, displaying vivid green, cyan, and blue fire across a dark to translucent body. Polished oval cabochon loose stone, solid and untreated, ideal for fine jewelry or collector use.

Type: Natural solid semi black opal loose stone
Origin: Lightning Ridge, NSW, Australia
Weight: 2.96ct approx
Dimensions: 16.1 x 10.1 x 2.6 mm approx
Color: Green, cyan, and blue fire
Cut Shape: Polished oval cabochon
Treatment: 100% natural untreated not a doublet or triplet

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23.94ct Natural Boulder Opal

AU$804

100% Natural Boulder Opal
Weight: 23.94 ct
Dimensions: 37x15x5 mm
Source: Winton, QLD, Australia

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Silver Australian Green Boulder Opal Pendant with Necklace 18.2 ct

AU$804

Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 29×12.5×4.5 mm
Whole Pendant Weight: 18.2 ct
(Size and weight are approximate)

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Solid Boulder Opal Pendant Sterling Silver Pink and Mint Green 16.4 ct

AU$804

16.4ct natural solid boulder opal pendant set in sterling silver. Pastel flashes of pink green and blue fire from Queensland Australia. Gift ready October birthstone necklace.

Type: Natural Solid Boulder Opal Silver Pendant

Origin: Queensland Australia

Dimensions: 26.5×10.5×4.7 mm approx

Weight: 16.4 ct approx

Color: Pastel pink green and blue fire with brown ironstone

Cut/Shape: Freeform cabochon

Necklace: S925 stamped rhodium plated sterling silver setting with chain

Treatment: 100 percent natural untreated opal not a doublet or triplet

 

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2.29ct Natural Dark Opal Blue Green Fire

AU$790

100% Natural Solid Dark Opal Polished Stone
Weight: 2.29 ct
Dimensions: 11×8.5×4 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
Partially Transparent

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4.8ct Natural White Opal Cooberpedy

AU$783

100% Natural White Opal Polished Stone
Dimensions:19x9x4 mm
Weight: 4.8 ct
Source: Coober Pedy,SA, Australia
Size and weight are approximate

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51 ct wood fossil boulder opal pendant from Winton Australia with pink orange green color and natural brown matrix
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51 ct Winton wood fossil boulder opal pendant shown worn on a black necklace with freeform sterling silver setting

Silver Boulder Opal Pendant Wood Fossil 51 ct

AU$776
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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.