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10x5mm Crystal Opal Calibrated 7ct

AU$999

Australian crystal opal calibrated parcel from Coober Pedy featuring fifteen marquise cut cabochons. Displaying bright neon fire with orange yellow green blue and cyan flashes. Ideal for professional jewelry making, matched designs, and custom settings.

Type: Natural Crystal Opal Calibrated Parcel
Origin: Coober Pedy South Australia
Quantity: 15 pieces
Total Weight: 7ctw
Stone Size: 10 x 5 mm approx
Shape: Marquise polished cabochon
Color: Bright neon fire with orange yellow green blue and cyan flashes
Appearance: Crystal to semi crystal transparency
Treatment: 100% natural untreated opal not doublet or triplet
Suitable For: Rings earrings pendants matched jewelry sets

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Natural gem pipe crystal boulder opal chips jar from Winton Queensland Australia weighing 81 carats
-20%
Natural gem pipe crystal boulder opal chips jar from Winton Queensland Australia weighing 81 carats

Gem Pipe Crystal Boulder Opal Chips Jar 81ct

Original price was: AU$214.Current price is: AU$171.

Weight: 29 kilogram total weight
Dimensions: see ruler in image
Source: Queensland, Australia
Quantity: see image
Photos and Video taken under overcast outdoor shady conditions. 

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7x5mm + 6x4mm Crystal Opal Calibrated 4.71ct

AU$1,184

Australian crystal opal calibrated parcel from Coober Pedy featuring four polished teardrop cabochons with electric neon orange yellow green cyan blue and pink fire. This matching set is ideal for rings earrings pendants and professional jewelry making.

Type: Natural Crystal Opal Calibrated Parcel
Origin: Coober Pedy South Australia
Total Weight: 4.71 ctw
Stone Sizes: 6 pieces approx 7 x 5 mm and 12 pieces approx 6 x 4 mm
Shape: Mixed calibrated shapes polished cabochon
Color: Electric neon orange yellow green cyan blue and pink fire
Treatment: 100 percent natural untreated opal not doublet or triplet
Suitable For: Rings earrings pendants matching sets and professional jewelry making

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10x8mm + 7x5mm Crystal Opal Calibrated 2.4ct

AU$756

Australian crystal opal calibrated parcel from Coober Pedy featuring three polished oval cabochons with vivid pink orange yellow green cyan and blue fire. This matching set includes one larger and two smaller stones, ideal for ring and earring designs or professional jewelry making.

Type: Natural Crystal Opal Calibrated Parcel
Origin: Coober Pedy South Australia
Total Weight: 2.4 ctw
Stone Sizes:1 piece 10 x 8 mm and 2 pieces 7 x 5 mm
Cut: Oval Polished cabochon calibrated
Color: Bright pink orange yellow green cyan and blue fire
Treatment: 100 percent natural untreated opal not doublet or triplet
Suitable For: Ring earrings pendant matching sets and professional jewelry making

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10x5mm + 8x4mm Crystal Opal Calibrated 1.38ct

AU$1,142

Australian crystal opal calibrated parcel from Coober Pedy featuring four polished marquise cabochons with vivid bright red pink orange yellow green blue and cyan fire. This matching set includes two larger and two smaller stones, ideal for ring and earring designs or professional jewelry making.

Type: Natural crystal opal calibrated parcel
Origin: Coober Pedy South Australia
Total Weight: 1.38ctw
Stone Sizes: 2 pieces 10 x 5 mm, 2 pieces 8 x 4 mm
Shape: Marquise cut polished cabochon
Color: Vivid bright red pink orange yellow green blue cyan fire
Treatment: 100 percent natural untreated opal not doublet or triplet
Suitable For: Ring earrings pendant matching sets professional jewelry making

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1.5ct Crystal Opal Parcel 4pcs Calibrated 9x6mm 8x5mm

AU$614

Australian crystal opal calibrated parcel from Coober Pedy featuring four polished teardrop cabochons with vivid red pink orange yellow green blue and cyan fire. This matching set includes two medium and two smaller stones, ideal for ring and earring designs or professional jewelry making.

Type: Natural Crystal Opal Calibrated Parcel
Origin: Coober Pedy South Australia
Total Weight: 1.5 ctw
Stone Sizes: 2 pieces 9 x 6 mm and 2 pieces 8 x 5 mm
Cut: Teardrop Polished cabochon calibrated
Color: Bright red pink orange yellow green blue and cyan fire
Treatment: 100 percent natural untreated opal not doublet or triplet
Suitable For: Ring earrings pendant matching sets and professional jewelry making

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2.76ct Crystal Opal Parcel 4pcs Calibrated 10x7mm 8x5mm

AU$614

Australian crystal opal calibrated parcel from Coober Pedy featuring four polished teardrop cabochons with vivid red pink orange yellow green blue and cyan fire. This matching set includes two larger and two smaller stones, ideal for ring and earring designs or professional jewelry making.

Type: Natural Crystal Opal Calibrated Parcel
Origin: Coober Pedy South Australia
Total Weight: 2.76 ctw
Stone Sizes: 2 pieces 10 x 7 mm and 2 pieces 8 x 5 mm
Cut: Teardrop Polished cabochon calibrated
Color: Bright red pink orange yellow green blue and cyan fire
Treatment: 100 percent natural untreated opal not doublet or triplet
Suitable For: Ring earrings pendant matching sets and professional jewelry making

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2.96ct Dark Opal Green Blue Fire

AU$828

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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3.93ct Dark Opal Blue Green Fire

AU$742

3.93ct black opal from Lightning Ridge, Australia, displaying blue and green shimmer across a dark body tone. Untreated high dome cabochon loose stone, ideal for fine jewelry, rings, pendants, or an October birthstone collector piece.

Type: Natural solid black opal loose stone
Origin: Lightning Ridge, NSW, Australia
Weight: 3.93ct approx
Dimensions: 13.9 x 9.5 x 5.3 mm approx
Color: Blue and green fire
Cut Shape: High dome cabochon freeform
Treatment: 100% natural untreated not a doublet or triplet

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2.7ct Black Opal Green Blue Fire

AU$1,570

2.7ct Australian black opal from Lightning Ridge featuring vivid green and blue rolling fire across a dark body tone. Freeform polished cabochon, 100% natural and untreated. Ideal for fine jewelry, statement rings, pendants, and a striking October birthstone gemstone.

Opal Type: Natural Solid Black Opal
Origin: Lightning Ridge, New South Wales, Australia
Weight: 2.7 carats
Dimensions: 15 × 11.3 × 3 mm approx
Shape: Freeform cabochon
Color: Bright green and blue rolling fire
Treatment: 100% natural and untreated, not a doublet or triplet
Use: Ring stone, pendant stone, fine jewelry, collector gemstone

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1.8ct Black Opal Green Blue Fire

AU$1,156

1.8ct Australian black opal from Lightning Ridge featuring vivid teal green and blue fire. Freeform polished cabochon with strong brightness, ideal for fine jewelry, rings, or collector use. Natural and untreated October birthstone opal.

Opal Type: Natural Solid Black Opal
Origin: Lightning Ridge, New South Wales, Australia
Weight: 1.8 carats
Dimensions: 14.5 × 8.1 × 2.8 mm approx
Shape: Freeform cabochon
Color: Neon teal green and blue fire
Treatment: 100% natural and untreated, not a doublet or triplet
Use: Ring stone, pendant, fine jewelry, collector gemstone

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Boulder Opal Pendant 20ct

AU$193

20ct Solid Boulder Opal pendant necklace from Queensland Australia with vivid multicolor fire across a natural brown matrix. 100% natural untreated ready to wear opal jewelry.

Type: Natural Solid Boulder Opal Pendant
Origin: Queensland Australia
Weight: 20ct approx
Dimensions: 28x13x5.5 mm
Shape: Freeform pendant
Color: Multicolor fire across brown matrix
Treatment: Untreated 100% natural
Necklace: Adjustable cord ready to wear

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14x9mm + 7x5mm Crystal Opal Calibrated 2.08ct

AU$1,142

Australian crystal opal calibrated set from Coober Pedy featuring teardrop and pear shaped cabochons. Displaying vivid bright fire with pink orange yellow green and blue flashes, ideal for fine jewelry making and matched designs.

Type: Natural Crystal Opal Calibrated Set
Origin: Coober Pedy South Australia
Total Weight: 2.08ctw approx
Stone Sizes: 1 piece 14 x 9 mm and 1 piece 7 x 5 mm
Shape: Teardrop and pear polished cabochon
Color: Vivid bright fire with pink orange yellow green and blue flashes
Appearance: Crystal to semi crystal transparency
Treatment: 100% natural untreated opal not doublet or triplet
Suitable For: Pendant ring earrings matched jewelry designs

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Wood Fossil Boulder Opal Pendant 95ct

AU$557

95ct Australian Boulder Opal pendant from Winton displays vivid blue, green, and white opal patterns through natural wood fossil matrix. Polished freeform cut with brown adjustable necklace, this natural untreated gemstone pendant is ideal for daily wear, gifting, and meaningful October birthstone jewelry.

Type: Natural Solid Boulder Opal Pendant
Origin: Winton, Queensland Australia
Dimensions: 50x30x8 mm (approx.)
Weight: 95 ct (approx.)
Color: Blue green fire with white opal and wood fossil matrix
Cut/Shape: Polished freeform pendant
Necklace: Brown adjustable cord, ready to wear
Treatment: 100% natural untreated opal (not a doublet or triplet)

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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Mineral Collector Stones
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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Mineral Collector Stones Close up

Gem Pipe Crystal Boulder Opal Chips Jar 50ctw – Mineral Collector Stones

Original price was: AU$143.Current price is: AU$114.

Weight: 50 carat total approximate weight
Dimensions: Jar 50x22x22mm (including lid)
Source: Quilpie, QLD, Australia
Quantity: Various
Gem Quality Pipe Crystal Opal chips ideal for souvenir, use as inlay material or cutting. Some opals are of size to cut small gems. Photos and Video taken under LED lighting. Jar filled with either water or oil.

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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Opal Decoration Jar
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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Opal Decoration Jar Close up

Gem Pipe Crystal Boulder Opal Chips Jar 50ctw – Opal Decoration Jar

Original price was: AU$143.Current price is: AU$114.

Weight: 50 carat total approximate weight
Dimensions: Jar 50x22x22mm (including lid)
Source: Quilpie, QLD, Australia
Quantity: Various
Gem Quality Pipe Crystal Opal chips ideal for souvenir, use as inlay material or cutting. Some opals are of size to cut small gems. Photos and Video taken under LED lighting. Jar filled with either water or oil.

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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Healing Crystal Chips
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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Healing Crystal Chips-close up

Gem Pipe Crystal Boulder Opal Chips Jar 50ctw – Healing Crystal Chips

Original price was: AU$143.Current price is: AU$114.

Weight: 50 carat total approximate weight
Dimensions: Jar 50x22x22mm (including lid)
Source: Quilpie, QLD, Australia
Quantity: Various
Gem Quality Pipe Crystal Opal chips ideal for souvenir, use as inlay material or cutting. Some opals are of size to cut small gems. Photos and Video taken under LED lighting. Jar filled with either water or oil.

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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Loose Raw Opal Stones
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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Loose Raw Opal Stones-Close Up

Gem Pipe Crystal Boulder Opal Chips Jar 50ctw – Loose Raw Opal Stones

Original price was: AU$143.Current price is: AU$114.

Weight: 50 carat total approximate weight
Dimensions: Jar 50x22x22mm (including lid)
Source: Quilpie, QLD, Australia
Quantity: Various
Gem Quality Pipe Crystal Opal chips ideal for souvenir, use as inlay material or cutting. Some opals are of size to cut small gems. Photos and Video taken under LED lighting. Jar filled with either water or oil.

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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Rainbow Flash Opals
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Gem Pipe Crystal Boulder Opal Chips Jar 50ctw-Rainbow Flash Opals Close Up

Gem Pipe Crystal Boulder Opal Chips Jar 50ctw – Rainbow Flash Opals

Original price was: AU$143.Current price is: AU$114.

Weight: 50 carat total approximate weight
Dimensions: Jar 50x22x22mm (including lid)
Source: Quilpie, QLD, Australia
Quantity: Various
Gem Quality Pipe Crystal Opal chips ideal for souvenir, use as inlay material or cutting. Some opals are of size to cut small gems. Photos and Video taken under LED lighting. Jar filled with either water or oil.

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10.21ct Boulder Opal Electric Multicolor Fire

AU$11,845

10.17ct Australian boulder opal showing dazzling golden orange yellow red green and blue fire. Expertly cut and polished in a freeform cabochon shape, 100% natural and untreated. Ideal for rings, pendants, statement jewelry, and a vibrant October birthstone gemstone.

Type: Natural Solid Boulder Opal Gemstone
Origin: Queensland, Australia
Dimensions: 21×12.1×4.7mm
Weight: 10.17ct
Color: Golden orange yellow red green and blue fire 
Cut/Shape: Freeform polished cabochon
Treatment: 100% natural untreated opal (not a doublet or triplet)

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.