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2.29ct Natural Dark Opal Blue Green Fire
AU$801100% Natural Solid Dark Opal Polished Stone
Weight: 2.29 ct
Dimensions: 11×8.5×4 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
Partially Transparent
Boulder Opal Pendant Sterling Silver Ocean Blue 24.7ct
Original price was: AU$942.AU$801Current price is: AU$801.Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 29.7 ctw approx. including pendant and necklace
Dimensions: 9.4 x 25.8 x 3.6 mm approx
Color: ocean blue green
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal
4.8ct Natural White Opal Cooberpedy
AU$794100% Natural White Opal Polished Stone
Dimensions:19x9x4 mm
Weight: 4.8 ct
Source: Coober Pedy,SA, Australia
Size and weight are approximate
1.95ct Natural Faceted Crystal Opal – Oval Green Blue
AU$787Opal: Natural, Solid, Untreated, Faceted
Source: Andamooka, Australia
Dimensions: 11.7×8.1×4.8 mm
Weight: 1.95 ct
Color: Green, Blue
Shape: Oval
Size and Weight are approximate
Sterling Silver Ocean Boulder Opal Ring 19 ct US 7
Original price was: AU$921.AU$783Current price is: AU$783.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 16.5x11x4.5 mm
Whole Ring Weight: 19 ct
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US7 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Size and weight are approximate
0.96ct Black Opal Heart – Vivid Green & Blue Fire
AU$773Opal Details:
Type: Natural, Solid, Untreated Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 7.1 × 10.1 × 2.2 mm (approx.)
Weight: 0.96ct (approx.)
1.99ct Natural Black Opal Heart – Green & Violet Fire
AU$773Opal Details:
Type: Natural, Solid, Untreated Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 13.7 × 9.9 × 2.5 mm (approx.)
Weight: 1.99ct (approx.)
Boulder Opal Ring 20.5ct Sterling Silver US7
Original price was: AU$893.AU$759Current price is: AU$759.Vivid blue and green fire define this natural Australian boulder opal ring. Teardrop bezel set in sterling silver, perfect for a bold statement and October birthstone jewelry.
Ring Size: US7 (size change not available)
Dimensions: 20 x 12 x 5 mm approx.
Weight: 20.5ct approx. (whole ring)
Origin: Queensland, Australia
Opal Type: Natural Solid Boulder Opal
Treatment: None (100% natural, not a doublet or triplet)
Metal: S925 sterling silver, rhodium plated
Ring Band: 3.5 mm
5ct Natural Boulder Opal Neon Blue Green Fire
AU$759Opal: Natural, Solid, Untreated, Polished
Dimensions: 19x11x3.5mm
Source: Winton, QLD, Australia
Weight: 5 ct
Color: Blue, Purple
Shape: Freeform
Size and weight are approximate
Boulder Opal Ring Multicolor Sterling Silver US7
Original price was: AU$879.AU$747Current price is: AU$747.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 18.5x11x3.5 mm approx
Whole Ring Weight: 20 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: U7 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
10x8mm + 7x5mm Crystal Opal Calibrated 2.4ct
AU$745Australian 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
Boulder Opal Pendant Sterling Silver Teal Green 31ct
Original price was: AU$872.AU$741Current price is: AU$741.Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 31ctw approx. including pendant and necklace
Dimensions: 13 x 25 x 4.5 mm approx
Color: teal green
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal
Opal Doublet 12.4ct Red Multicolor Fire
AU$738Type: Australian Opal Doublet
Size: 39 × 11.4 × 3.3 mm
Weight: 12.4ctw approx
Origin: Australia
Suitable For: Rings, pendants, earrings, custom jewelry
4.63ct Natural Black Opal Oval Blue Green
AU$738Type: Natural solid black opal
Origin: Lightning Ridge, Australia
Dimensions: 19.6 × 8.2 × 4 mm (approx.)
Weight: 4.63ct (approx.)
Treatment: 100% natural, untreated (not a doublet or triplet)
October birthstone gemstone
Please note: camera may show slight magenta tones, but the opal appears blue to the eye.
3.93ct Dark Opal Blue Green Fire
AU$7313.93ct 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
Boulder Opal Ring Sterling Silver Size 10 1/2
Original price was: AU$844.AU$717Current price is: AU$717.Accent Stone: Faceted Amethyst
Setting: Bezel set opal with prong set amethyst
Ring Size: US 10.5
Total Ring Weight: 13ctw
Sterling Silver Sparkling Boulder Opal Ring US 8
Original price was: AU$836.AU$711Current price is: AU$711.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 20.5x10x5 mm
Whole Ring Weight: 21 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
Size and weight are approximate
Sterling Silver Purple Boulder Opal Ring US7
Original price was: AU$836.AU$711Current price is: AU$711.Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 14×13.5×4 mm approx
Whole Ring Weight: 20 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: U7 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
2.35ct Natural Crystal Opal Lightning Ridge
AU$710Double Sided Natural Solid Crystal Opal Polished
Weight: 2.35 ct
Dimensions: 11x7x4.5 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
Transparent
1.97ct Natural Dark Opal Rainbow Fire
AU$703Opal Details:
- Type: Natural, Solid, Untreated Dark Opal
- Origin: Lightning Ridge, Australia
- Dimensions: 10.6×8.8×3 mm
- Weight: 1.97ct
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.