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9.98ct Natural Boulder Opal Purplish Blue Green

AU$601
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3.51ct Natural Boulder Opal Turquoise

AU$594
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Elongated teardrop shaped Australian boulder opal pendant with vibrant blue purple color
-15%
Boulder opal pendant necklace shown worn with elegant silver chain
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Boulder Opal Pendant Sterling Silver 14.8ct

Original price was: AU$699.Current price is: AU$594.
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Boulder Opal Ring 29ct Sterling Silver US6 3/4

Original price was: AU$692.Current price is: AU$588.
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Boulder Opal Ring 15.5ct Sterling Silver US 7

Original price was: AU$692.Current price is: AU$588.
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Opal Doublet Parcel Calibrated 8x5mm

AU$587
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4mm Round Calibrated Opal Doublet Parcel 3.48ct

AU$587
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4mm Round Calibrated Opal Doublet Parcel 3.5ct

AU$587
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3.83ct Crystal Boulder Opal

AU$587
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1.1ct Crystal Boulder Opal

AU$587
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7.7ct Natural Boulder Opal

AU$587
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1.75ct Natural Crystal Boulder Opal

AU$587
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22.68ct Double Sided Natural Koroit Boulder Opal

AU$587
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23.11ct Natural Boulder Opal Deep Blue Fire

AU$587
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12.47ct Natural Australian Crystal Boulder Opal

AU$587
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boulder opal pendant 26.8 ct sterling silver necklace showing strong green flash color play
-15%
boulder opal pendant 26.8 ct sterling silver held on finger showing vivid green flash fire pattern
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Boulder Opal Pendant 26.8 ct, Sterling Silver Green Flash Opal

Original price was: AU$671.Current price is: AU$570.
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Boulder Opal Ring Sterling Silver Size 10

Original price was: AU$671.Current price is: AU$570.
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Crystal Boulder Opal Pendant Sterling Silver 24.5ct

Original price was: AU$671.Current price is: AU$570.
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1.8ct Crystal Opal Parcel 6pcs Calibrated 8x5mm

AU$559
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Half Moon Natural Boulder Opal 11.3 ct

AU$559

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.

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.

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.

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.

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.

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.

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.