Explore opals by type
Black Opal
Boulder Opal
Pipe Opal
Crystal Opal
White Opal
Opal Jewelry
Explore opals by shape
Oval
Teardrop
Heart
Round
Square
Freeform
Filters
Black Opal Blue Green Fire 1.51ct
AU$513Type: Natural solid black opal
Origin: Lightning Ridge, Australia
Dimensions: 10.4 × 5.7 × 3.6 mm
Weight: 1.51ct
Treatment: 100% natural, untreated (not a doublet or triplet)
October birthstone gemstone
1.25ct Natural Black Opal Green Blue
AU$563💎 Opal Details:
- Type: Natural, Solid, Untreated Black Opal
- Origin: Lightning Ridge, Australia
- Dimensions: 10.2×6.8×3 mm
- Weight: 1.25ct
1.97ct Natural Dark Opal Rainbow Fire
AU$713Opal Details:
- Type: Natural, Solid, Untreated Dark Opal
- Origin: Lightning Ridge, Australia
- Dimensions: 10.6×8.8×3 mm
- Weight: 1.97ct
1.08ct Natural Dark Opal Green Fire
AU$214Opal Details:
Opal Type: Natural, Solid, Untreated
Origin: Lightning Ridge, Australia
Dimensions: 12x8x2 mm approx
Weight: 1.08ct approx
168.3ct Natural Boulder Opal Specimen
AU$2,850Opal Details:
- Type: Natural Matrix Boulder Opal Specimen
- Origin: Winton, Australia
- Weight: 168.3ct
- Dimensions: 67.8 × 44.2 × 8.9 mm
- Play-of-Color: blue and green veins
- Matrix: Natural ironstone
0.83ct Natural Black Opal Lightning Ridge
AU$463💎 Opal Details:
Type: Natural Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 11 x 6.2 x 1.8 mm approx
Weight: 0.83ct approx
1ct Natural Black Opal Lightning Ridge
AU$563Opal Details:
Type: Natural Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 8x8x2.2 mm approx
Weight: 1ct approx
8.67ct Natural Dark Opal Oval Flagstone Pattern
AU$3,135Opal Details:
Type: Natural Solid Dark Opal
Origin: Lightning Ridge, Australia
Dimensions: 22 × 11.2 × 5 mm
Weight: 8.67ct
(Size and weight are approximate)
2.41 ct Natural Turquoise Green Boulder Opal
AU$342💎 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$342💎 Opal Details:
Weight: 2.58 ct
Dimensions: 14.5x7x3mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
Green Flash Natural Boulder Opal 2.38 ct
AU$335💎 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$335💎 Opal Details:
Weight: 1.05 ct
Dimensions: 12×4.8×2 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
Polished Green Blue Boulder Opal 2.73 ct
AU$342💎 Opal Details:
Weight: 1.18 ct
Dimensions: 10×5.5×2.2 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
Natural Australian Solid Boulder Opal 1.83 ct
AU$335💎 Opal Details:
Weight: 1.83 ct
Dimensions: 11.5×5.2×2.8 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
2.18 ct Natural Boulder Opal
AU$342Weight: 2.18 ct
Dimensions: 13 x 6 x 2.7 mm
Origin: Winton, Queensland, Australia
Size and weight are approximate
Rolling Fire Dark Opal Platinum Ring 1.46 ct
AU$8,265💎 Gemstone Details:
Opal Type: Natural Australian Dark Opal (Semi Black Opal)
Opal Weight: 1.46 carats
Opal Pattern: Rolling Fire
Color: Vibrant Red, Orange, Yellow, Blue and Green play-of-color
Diamond Total Weight: 0.3 carats (stamped)
Diamond Cut: Round & baguette brilliant
Diamond Clarity: VS-SI (high-quality sparkle)
💍 Ring Details:
Metal: Solid Platinum 900 (Pt900 Stamped)
Total Ring Weight: 24.62 ctw
Ring Size: US #6 3/4 (Resizing may be available – please inquire)
Setting Style: Vintage-inspired diamond halo with baguette & round diamonds
Green Black Opal 1.39 ct set in 18K White Gold Ring
AU$9,975💎 Gemstone Details:
Opal Type: Natural Australian Black Opal
Opal Weight: 1.39 carats
Opal Colors: Vivid blue-green with deep body tone
Diamond Total Weight: 0.52 carats
Diamond Cut: Round brilliant
Diamond Clarity: VS-SI (high-quality, excellent sparkle)
💍 Ring Details:
Metal: Solid 18K White Gold (K18WG)
Total Ring Weight: 30.9 ctw
Ring Size: US #5 (Resizing available – please inquire)
Setting Style: Elegant diamond halo with side diamond accents
Natural Black Opal Platinum Diamond Ring
AU$25,650Opal Type: Natural Black Opal
Origin: Lightning Ridge, Australia
Opal Weight: 1.75 ct
Opal Size: 10.4 x 10.4 x 1.8 mm
Diamond Weight: 0.83 ct
Diamond Type: Natural VS-SI high quality, excellent sparkle
Metal: Platinum (PT850 stamped)
Ring Band Dimension: 1.7mm
Ring Size: US #6
Whole Ring Weight: 33.95 ct
Setting Dimensions: 18.8 x 17.4 x 11.5 mm
SKU: JJ118
Natural Neon Green Dark Opal Platinum Ring 4.76 ct
AU$12,540Opal Type: Natural, Solid, Untreated Dark Opal ( mSemi Black Opal)
Opal Weight: 4.76 ct (Stamped)
Opal Colors: Vivid green, orange and golden yellow fire
Diamond Weight: 0.153 ctw (8 round brilliant diamonds)
Metal: Pt900 Platinum (Stamped)
Total Ring Weight: 37.35 ctw (Approximate)
Ring Size: US 6 (Complimentary resizing available)
Setting Type: Four-prong setting with diamond accents
Shank Style: Elegant split tapered shank
Origin: Lightning Ridge, NSW, Australia
Rolling Green Blue Black Opal Platinum Ring 3.3 ct
AU$12,540Opal Type: Natural, Solid, Untreated Black Opal
Opal Weight: 3.3 ct (Stamped)
Origin: Lightning Ridge, NSW, Australia
Opal Dimensions: 14.4×8.7×3 mm (Approximate)
Diamond Weight: 0.61 ctw (Baguette & Round) (Stamped)
Metal: Pt900 Platinum (Stamped)
Total Ring Weight: 41.35 ctw (Approximate)
Ring Size: US 5 3/4 (Complimentary resizing available)
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.