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25.1ct Natural Crystal Boulder Opal
AU$355Natural Solid Untreated Australian Crystal Boulder Opal Polished Stone
Total Weight: 25.1 carats
Dimensions: 23.5x19x9.5mm
Source: Winton, QLD, Australia
Item code : PP299
Size and weight are approximate
22.3ct Silver Boulder Opal Pendant Oval Brown Koroit Vein
AU$355Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Koroit, Queensland, Australia
Dimensions: 29×12.5×5.5mm
Whole Pendant Weight: 22.3 ct
(Size and weight are approximate)
5 Piece Sliced Koroit Boulder Opal Rough Parcel 1.1kg
Original price was: AU$469.AU$352Current price is: AU$352.Weight: 1.1 kilogram total weight
Dimensions: see ruler in image
Source: Koroit, QLD, Australia
Quantity: 5 Pieces
Photos and Video taken under LED Lighting. Opals are wet to show color. Price includes Worldwide Shipping.
Winton Rubbed Rough Boulder Opal Parcel 437g
Original price was: AU$455.AU$341Current price is: AU$341.Weight: 437 gram total weight
Dimensions: See ruler in image
Source: Winton, QLD, Australia
Price: $320
Quantity: 30 Pieces
Description:
Ideal beginners parcel. Opals are wet to show color and taken under LED Lighting. Price includes Worldwide Registered Shipping.
3mm Round Calibrated Opal Doublet Parcel 3.01ct
AU$34125pcs calibrated 3mm round opal doublet parcel with a total weight of 3.01ctw. Matched stones showing vivid green and blue fire, professionally polished and precision calibrated. Ideal for halo settings, earrings, rings, and fine detailed jewelry work.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 3mm calibrated
Quantity: 25 stones
Total Weight: 3.01ctw approx
Fire Color: Green and blue fire
Finish: Polished cabochon
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, accent stones, calibrated settings, fine jewelry, October birthstone designs
3mm Round Calibrated Opal Doublet Parcel 3.02ct
AU$34125pcs calibrated 3mm round opal doublet parcel with a total weight of 3.02ctw. Matched stones showing vivid green and blue fire, professionally polished and precision calibrated. Ideal for halo settings, earrings, rings, and fine detailed jewelry work.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 3mm calibrated
Quantity: 25 stones
Total Weight: 3.02ctw approx
Fire Color: Green and blue fire
Finish: Polished cabochon
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, accent stones, calibrated settings, fine jewelry, October birthstone designs
4mm Round Calibrated Opal Doublet Parcel 3.45ct
AU$341A calibrated parcel of 16 round 4mm Australian opal doublets totaling approximately 3.45ctw. Matched stones displaying vivid rainbow fire with red, orange, yellow, green, and blue flashes, ideal for rings, pendants, earrings, and fine jewelry designs.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 4mm calibrated
Quantity: 16 stones
Total Weight: 3.45ctw approx
Fire Color: Red, orange, yellow, green, blue rainbow fire
Finish: Polished cabochon
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, accent stones, calibrated settings, fine jewelry, October birthstone designs
2.5mm Round Calibrated Opal Doublet Parcel 1.8ct
AU$34125 pieces of calibrated 2.5mm Australian opal doublets totaling approximately 1.8ctw. Matched round stones with vivid gold, orange, yellow, green, and blue fire, ideal for earrings, rings, and fine jewelry making.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 2.5mm calibrated
Quantity: 25 stones
Total Weight: 1.8ctw approx
Fire Color: Gold, orange, yellow, green, blue
Finish: Polished cabochon
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, micro pavé jewelry, calibrated settings, fine jewelry, October birthstone designs
2.5mm Round Calibrated Opal Doublet Parcel 2.21ct
AU$341A calibrated parcel of 25 round opal doublets in 2.5mm size, totaling 2.21ctw. These stones display vivid orange, yellow, green, and blue fire and are selected for consistent size, polish, and color. Ideal for micro pavé, accent settings, and fine jewelry making.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 2.5mm calibrated
Quantity: 25 stones
Total Weight: 2.21ctw approx
Fire Color: Orange, yellow, green, blue
Finish: Polished cabochon
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, micro pavé jewelry, calibrated settings, fine jewelry, October birthstone designs
2mm Round Calibrated Opal Doublet Parcel 1.16ct
AU$34125 pieces of Australian opal doublets in calibrated 2mm round size, showing vivid blue and green neon fire. Ideal for fine jewelry making, micro pavé settings, earrings, and small calibrated designs.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 2mm calibrated
Quantity: 25 stones
Total Weight: 1.16ctw approx
Fire Color: Blue green neon fire
Finish: Polished cabochon
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, micro pavé jewelry, calibrated settings, fine jewelry, October birthstone designs
2mm Round Calibrated Opal Doublet Parcel 1.14ct
AU$34125 pieces of Australian opal doublets in calibrated 2mm round size, featuring vivid neon red, orange, yellow, green, and blue fire. These natural opal doublets are ideal for fine jewelry making, micro pavé settings, and October birthstone designs.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 2mm calibrated
Quantity: 25 stones
Total Weight: 1.14ctw approx
Color: Neon red, orange, yellow, green, blue
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, micro pavé jewelry, calibrated settings, fine jewelry, October birthstone designs
2.41 ct Natural Turquoise Green Boulder Opal
AU$341💎 Opal Details:
Weight: 2.41 ct
Dimensions: 19.4x5x2.8 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
2.58 ct Natural Boulder Opal Blue Green
AU$341💎 Opal Details:
Weight: 2.58 ct
Dimensions: 14.5x7x3mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
Polished Green Blue Boulder Opal 2.73 ct
AU$341💎 Opal Details:
Weight: 1.18 ct
Dimensions: 10×5.5×2.2 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
2.18 ct Natural Boulder Opal
AU$341Weight: 2.18 ct
Dimensions: 13 x 6 x 2.7 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
4.98 ct Dark Crystal Opal Lightning Ridge
AU$341Opal: Natural, Solid, Untreated, Polished, Transparent
Source: Lightning Ridge, NSW, Australia
Dimensions: 17.5x11x3.8 mm
Weight: 4.98 ct
(Size and weight are approximate)
Color: Cyan, Green, Blue
Boulder Opal Pendant 66 ct
AU$34166ct Australian Boulder Opal pendant from Winton shows bright purple fire glowing through its natural ironstone body. Polished rectangular freeform cut and finished with a black adjustable necklace, it is ready for daily wear or gifting. Natural untreated opal ideal for October birthstone jewelry.
Type: Natural Solid Boulder Opal Pendant
Origin: Winton, Queensland Australia
Dimensions: 34.5×23×8.5 mm approx
Weight: 66 carats approx
Color: Bright purple fire with rich brown ironstone
Cut/Shape: Polished rectangular freeform, drilled
Necklace: Black adjustable cord, ready to wear
Treatment: 100 percent natural untreated opal (not a doublet or triplet)
Black Opal Gemstone Green Yellow Fire 1.79ct
AU$334Type: Natural solid black opal
Origin: Lightning Ridge, Australia
Dimensions: 10.2 × 7.7 × 3.5 mm (approx.)
Weight: 1.79ct (approx.)
Treatment: 100% natural, untreated (not a doublet or triplet)
October birthstone gemstone
Green Flash Natural Boulder Opal 2.38 ct
AU$334💎 Opal Details:
Weight: 2.38 ct
Dimensions: 14×6.7×2.7 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
Blue Green Solid Boulder Opal 1.05 ct
AU$334💎 Opal Details:
Weight: 1.05 ct
Dimensions: 12×4.8×2 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
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.