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Opal Doublet Pair 6.7ct
AU$4152 piece Australian opal doublet parcel totaling 6.7ctw, featuring vivid green and blue fire. Freeform polished cabochons, uncalibrated, ideal for earrings, pendants, or custom jewelry designs.
Stone Type: Natural Australian Opal Doublet
Quantity: 2 stones
Total Weight: 6.7ctw approx
Dimensions: Approx 14 x 11.6 x 3 mm Approx 11.7 x 13.8 x 3 mm
Color: Green and blue fire
Shape: Freeform cabochon
Treatment: Opal doublet (natural crystal opal bonded to ironstone)
2.26ct Crystal Boulder Opal
AU$4152.26ct Australian crystal opal features pastel green and blue fire with soft lavender undertones. Expertly polished in a freeform shape, it is ideal for rings, pendants, and fine October birthstone jewelry. Natural and untreated, perfect for custom design or a collector gemstone.
Type: Natural solid crystal opal
Origin: Queensland Australia
Dimensions: 15 x 7.9 x 3 mm
Weight: 2.26ct
Color: Pastel green and blue fire with lavender and peach body
Cut/Shape: Freeform polished cabochon
Treatment: 100 percent natural untreated opal not a doublet or triplet
Use: Ring, pendant, fine jewelry, October birthstone
1.2ct Natural Crystal Opal Lightning Ridge
Original price was: AU$520.AU$415Current price is: AU$415.Natural Solid Untreated Australian Crystal Opal
Weight: 1.2 ct
Dimensions: 9x8x3 mm
Source: Lightning Ridge, NSW, Australia
(Size and weight are approximate)
26.81ct Double Sided Vein Australian Koroit Boulder Opal
AU$408100% Natural Polished Boulder Opal
Weight: 26.81 ct
Dimensions: 46.5×12.5×4.5 mm
Source: Koroit, QLD, Australia
4.14ct Natural Dark Opal Teardrop Green Blue
Original price was: AU$450.AU$405Current price is: AU$405.Opal: Natural, Solid, Untreated, Polished
Source: Lightning Ridge, NSW, Australia
Dimensions: 17x10x4 mm
Weight: 4.14 ct
(Size and weight are approximate)
Color: Cyan, Green, Blue
5.85ct Natural Boulder Opal
AU$401100% Natural Solid Boulder Opal Polished Stone
Weight: 5.85 ct
Dimensions: 15.5x11x3 mm
Source: Winton,QLD, Australia
Size and weight are approximate
15.28ct Natural Boulder Opal Blue Green
AU$401100% Natural Polished Boulder Opal
Weight: 15.28 ct
Dimensions: 38x15x4.5 mm
Source: Winton,QLD, Australia
Boulder Opal Pendant 75ct
Original price was: AU$464.AU$395Current price is: AU$395.75ct Solid Boulder Opal pendant from Winton Queensland Australia with purplish blue fire across natural brown matrix. 100% natural untreated ready to wear jewelry perfect for collectors and opal lovers.
10ct Boulder Opal Red Blue Green Stripe Flash
AU$39410ct Australian boulder opal from Winton Queensland reveals striking red, blue, and green stripe flashes across its dark ironstone body. Expertly polished freeform cut, 100% natural and untreated. Ideal for fine jewelry, collector gemstone, or meaningful October birthstone gift.
Type: Natural Solid Boulder Opal
Origin: Winton, Queensland, Australia
Dimensions: 24 x 12.5 x 4 mm (approx.)
Weight: 10ct (approx.)
Color: Brilliant red, blue, and green stripe flash
Cut/Shape: Freeform polished cabochon
Treatment: 100% natural, untreated opal (not a doublet or triplet)
Lightning Ridge Rough Opal Parcel 300g Beginner Opal Parcel
Original price was: AU$520.AU$390Current price is: AU$390.Weight: 300 gram total weight
Dimensions: Container is 16.5 x 16.5cm
Source: Lightning Ridge, NSW, Australia
Plenty of colorful, cuttable pieces in this great value parcel. Opals are wet to show color and taken under Natural Sunlight on an iPhone. Price includes Worldwide Registered Shipping.
37ct Koroit Boulder Opal Pendant
Original price was: AU$457.AU$388Current price is: AU$388.Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Koroit, Queensland, Australia
Dimensions: 35x15x6mm
Whole Pendant Weight: 37 ct
(Size and weight are approximate)
Boulder Opal Pendant 21ct
Original price was: AU$457.AU$388Current price is: AU$388.21ct solid boulder opal from Queensland, Australia, shows vivid blue and green fire with fossil wood matrix. 100% natural, untreated drilled gemstone pendant, ideal for daily wear, custom opal jewelry, and collectors.
Boulder Opal Ring 28.5ct Sterling Silver US6 1/4
Original price was: AU$457.AU$388Current price is: AU$388.Green flash and electric blue shimmer across natural ironstone in this solid Australian boulder opal ring. Large freeform bezel set in sterling silver, perfect for bold October birthstone jewelry.
Ring Size: US6 1/4 (not resizable)
Metal: S925 Sterling Silver, rhodium plated
Origin: Queensland, Australia
Setting Dimensions: 19 × 17 × 5.5 mm approx.
Weight: 28.5 ct approx. (whole ring)
Opal Type: Natural Solid Boulder Opal
Treatment: None (100% natural, not a doublet or triplet)
Additional custom lighting image requests are not available.
Sterling Silver Vein Boulder Opal Ring 48ct US10
Original price was: AU$457.AU$388Current price is: AU$388.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 19x19x6 mm approx
Whole Ring Weight: 48 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: U10 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Sterling Silver Green Oval Boulder Opal Ring 20 ct US 8
Original price was: AU$457.AU$388Current price is: AU$388.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 17.5x12x5 mm approx
Whole Ring Weight: 20 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: US8 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Sterling Silver Australian Boulder Opal Ring US 8
Original price was: AU$457.AU$388Current price is: AU$388.Opal: Natural, Solid, Untreated, Polished
Setting Dimensions: 21x12x6 mm
Whole Ring Weight: 24 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
Wood Fossil Boulder Opal Pendant 16ct
Original price was: AU$457.AU$388Current price is: AU$388.16ct Australian wood fossil boulder opal pendant from Winton, Queensland featuring vivid pinkish red and green glittery fire. Polished drilled cabochon set on a beige adjustable necklace. 100% natural and untreated opal, ready to wear and perfect for October birthstone jewelry.
Type: Natural solid wood fossil boulder opal pendant
Origin: Winton, Queensland, Australia
Weight: 16 ct
Size: 25 x 14 x 5 mm
Color: Pinkish red fire with green flashes
Cut: Polished drilled cabochon
Necklace: Beige adjustable cord
Treatment: 100% natural and untreated
Wood Fossil Boulder Opal Pendant 77ct
Original price was: AU$457.AU$388Current price is: AU$388.77ct Australian wood fossil boulder opal pendant from Winton, Queensland. This freeform polished cabochon features glittery green, yellow, and orange fire across rich brown ironstone. Drilled and ready to wear on a dark brown adjustable cord. Natural, untreated October birthstone jewelry.
Type: Natural Solid Wood Fossil Boulder Opal Pendant
Origin: Winton, Queensland, Australia
Weight: 77ct
Dimensions: 43 × 29 × 8 mm
Colors: Glittery green, yellow, orange fire
Body tone: Brown ironstone wood fossil
Cut / Shape: Freeform polished cabochon
Necklace: Dark brown adjustable cord
Treatment: 100% natural, untreated (not doublet or triplet)
Opal Doublet Parcel Calibrated 8x4mm 6x3mm
AU$387Opal doublet calibrated marquise set displays vivid neon green, blue, yellow and flashes of orange fire across deep body tones. Perfectly matched for custom earrings or fine jewelry.
Stone Type: Australian Opal Doublet
Size: 8 × 4 mm / 6 x 3 mm approx (calibrated)
Total Weight: 1.31 ctw approx
Origin: Coober Pedy, Australia
Suitable For: Earrings, rings, pendants, custom jewelry
1.48ct Crystal Boulder Opal
AU$3871.48ct Australian crystal opal with vibrant green and blue fire in a polished teardrop cut. Natural and untreated with pastel undertones and bright play of color. Ideal for opal rings, pendants, and October birthstone jewelry.
Type: Natural Solid Crystal Opal (Pipe Opal)
Origin: Queensland, Australia
Weight: 1.48ct
Dimensions: 11.8 x 7.8 x 2.7 mm
Color: Bright green blue fire
Cut/Shape: Teardrop 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.