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2.01ct Natural Faceted Crystal Opal – Oval Blue Fire
AU$703Opal Details:
Type: Natural, Solid, Untreated, Faceted
Origin: Andamooka, Australia
Dimensions: 10.7 × 8.7 × 5.6 mm (approx.)
Weight: 2.01ct (approx.)
Crystal Opal 1.07ct
AU$703100% Natural Solid Crystal Opal Polished Stone
Weight: 1.07 ct
Dimensions: 13x6x1.5 mm
Source: Queensland, Australia
Size and weight are approximate
Transparent
1.37ct Natural Crystal Boulder Opal
AU$703100% Natural Solid Crystal Opal Polished Stone
Weight: 1.37 ct
Dimensions: 11x6x3.2 mm
Source: Queensland, Australia
Size and weight are approximate
Transparent
1.64ct Natural Crystal Boulder Opal
AU$703100% Natural Solid Crystal Opal Polished Stone
Weight: 1.64 ct
Dimensions: 15×5.2×3 mm
Source: Queensland, Australia
Size and weight are approximate
Transparent
20ct Natural Boulder Opal Large Purple
AU$703100% Natural Boulder Opal
Weight: 20 ct
Dimensions: 34.5x10x4.5 mm
Source: Winton, QLD, Australia
Black Opal Electric Green Yellow 0.77ct
AU$696Type: Natural solid black opal
Origin: Lightning Ridge, Australia
Dimensions: 11 × 7.5 × 1.6 mm
Weight: 0.77ct
Treatment: 100% natural, untreated (not a doublet or triplet)
October birthstone gemstone
9x6mm Crystal Opal Calibrated 5.59ct
AU$6965.59ct Australian crystal opal parcel from Coober Pedy featuring eight calibrated pear cabochons with vivid neon rainbow fire. Natural, solid, untreated opals ideal for earrings, pendants, and fine jewelry designs. Perfect for October birthstone jewelry and jeweler use.
Type: Natural Solid Crystal Opal Parcel
Origin: Coober Pedy, South Australia, Australia
Quantity: 8 pieces
Total Weight: 5.59 carats approx
Dimensions: 9 x 6 x 3 mm each approx
Cut Shape: Calibrated pear cabochon
Color: Vivid neon rainbow fire with red, green, blue flashes
Treatment: 100% natural and untreated opals (not doublets or triplets)
Use: Perfect for matching earrings, pendants, fine jewelry making, or gemstone collection
146.94ct Large Natural Koroit Boulder Opal
AU$696100% Natural Polished Boulder Opal
Weight: 146.94 ct
Dimensions: 39x30x13 mm
Source: Koroit,QLD, Australia
Silver Australian Green Boulder Opal Pendant with Necklace 18.2 ct
Original price was: AU$815.AU$693Current price is: AU$693.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)
Solid Boulder Opal Pendant Sterling Silver Pink and Mint Green 16.4 ct
Original price was: AU$815.AU$693Current price is: AU$693.16.4ct 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
Boulder Opal Ring Sterling Silver Size 8 1/2
Original price was: AU$815.AU$693Current price is: AU$693.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
Boulder Opal Pendant Sterling Silver Deep Blue Purple 24.5ct
Original price was: AU$815.AU$693Current price is: AU$693.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
3.5kg Boulder Opal Rough Parcel (18 Pieces)
Original price was: AU$914.AU$685Current price is: AU$685.Weight: 3.5 kg total weight
Dimensions: see ruler in image
Source: Winton, QLD, Australia
Quantity: 41 Pieces
Opals are wet to show color. Photos taken under natural sunlight and LED Lighting. Video taken under LED lighting. Price includes Worldwide Shipping. Express shipping unavailable due to weight.
1.15ct Natural Dark Opal – Teardrop Multi-Color
AU$682100% Natural Solid Dark Opal Polished Stone
(partially transparency)
Weight: 1.15 ct
Dimensions: 11.5x6x2.5 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
1.81ct Natural Dark Opal – Pear Green Yellow
AU$682
Opal Details:
-
Type: Natural, Solid, Untreated, Polished Dark Opal (Partially Transparent)
-
Origin: Lightning Ridge, NSW, Australia
-
Dimensions: 12 × 10.5 × 2 mm (approx.)
-
Weight: 1.81 ct (approx.)
Black Opal 1.04ct Teal Blue Green
AU$682Natural Australian black opal gemstone with vivid multicolor fire, ideal for opal ring, opal pendant, or fine opal jewelry. Australian opal perfect for October birthstone jewelry and a meaningful gift for her.
Type: Natural Solid Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 6.8 x 6.8 x 3 mm approx
Weight: 1.04ct approx
3mm Round Calibrated Opal Doublet Parcel 2.85ct
AU$675Australian opal doublet parcel 25pcs calibrated 3mm round. Matched stones showing Bright neon green, blue, gold and cyan fire, precision calibrated. ideal for stud earrings, cluster rings and small jewellery designs. Perfect size for matching pairs, earrings, rings and fine jewellery layouts.
Stone Type: Australian Opal Doublet
Size: 3mm round calibrated
Total Weight: 2.85ctw approx
Use: Rings, earrings, pendants, halo settings, fine jewelry work
1.19ct Natural Dark Opal Heart – Green Fire
AU$675Opal Details:
Type: Natural, Solid, Untreated Dark Opal
Origin: Lightning Ridge, Australia
Dimensions: 6.5×9.7×2.8mm (approx.)
Weight: 1.19ct (approx.)
Boulder Opal Ring Sterling Silver Size 7
Original price was: AU$787.AU$669Current price is: AU$669.Accent Stone: Faceted Amethyst
Setting: Bezel set opal with prong set amethyst
Ring Size: US 7
Total Ring Weight: 13.4ctw
7.6ct Natural Boulder Opal Blue Green
AU$668Opal: Natural, Solid, Untreated, Polished
Source: Winton, QLD, Australia
Dimensions: 24.5x10x4mm
Weight: 7.6 ct
Color: Blue, Purple
Shape: Freeform
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.