Filters
2.97ct Natural Crystal Opal Lightning Ridge
AU$1,142100% Natural Solid Black Crystal Opal Polished Stone
Weight: 2.97 ct
Dimensions: 11.5x8x4.5 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
Transparent
1.86ct Natural Dark Opal Lightning Ridge
AU$1,142100% Natural Solid Dark Opal Polished Stone
Weight: 1.86 ct
Dimensions: 14x8x2.2 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
24.69ct Solid Boulder Opal Vivid Blue Green Purple
AU$1,13524.69ct natural boulder opal from Winton Queensland Australia displays vibrant green cyan fire with purple blue gradient color body. 100% natural, untreated loose opal gemstone ideal for custom opal jewelry and collectors.
2.23ct Black Crystal Opal Chinese Writing Pattern
AU$1,1142.23ct natural solid Australian black crystal opal featuring vivid teal, blue, and green fire with a rare Chinese writing pattern. Polished round cabochon, untreated and highly collectible. Ideal for fine jewelry, opal rings, or an October birthstone centerpiece.
Opal Type: Natural Solid Black Crystal Opal
Origin: Lightning Ridge, New South Wales, Australia
Weight: 2.23 carats
Dimensions: 9.5 x 9.1 mm approx
Shape: Round cabochon
Color: Teal, blue, green fire
Pattern: Rare Chinese writing pattern
Treatment: 100% natural and untreated, not a doublet or triplet
Use: Ring stone, pendant stone, fine jewelry, collector gemstone
23.38ct Natural Boulder Opal Neon Blue Fire
AU$1,114100% Natural Boulder Opal
Weight: 23.38 ct
Dimensions: 34x13x5 mm
Source: Winton, QLD, Australia
Sterling Silver Purple Boulder Opal Ring 33 ct US 9
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 26×13.5×6 mm
Whole Ring Weight: 33 ct
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US9 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver
Size and weight are approximate
0.76ct Natural Black Crystal Opal Lightning Ridge
AU$1,093100% Natural Lightning Ridge Black Crystal Opal
Weight: 0.76 ct
Dimensions: 10x7x1.2 mm
Source: Lightning Ridge, NSW, Australia
Black Opal 1.2 ct Blue Green Flash
AU$1,085Natural Australian black opal displaying vivid blue and green fire across a polished oval cabochon. Sourced from the Coocoran Opal Fields in Lightning Ridge, this solid untreated opal is ideal for an opal ring, opal pendant, opal necklace, or custom jewelry design. Certificate available upon request.
Type: Natural Solid Untreated Black Opal
Origin: Coocoran Opal Fields, Lightning Ridge, Australia
Dimensions: 3 x 7.1 x 3.3 mm approx
Weight: 1.20 ct approx
1.67ct Natural Dark Opal Heart
AU$1,085💎 Opal Details:
- Type: Natural, Solid, Untreated, Polished Dark Opal
- Origin: Grawin, Lightning Ridge, NSW, Australia
- Dimensions: 8.5 × 8 × 3.5 mm (approx.)
- Weight: 1.67ct (approx.)
6.4ct Natural Boulder Opal Wood Fossil Winton
AU$1,078Natural Solid Untreated Australian Boulder Opal Polished Stone
Weight: 6.4 carats
Dimensions: 31x6x3.5mm
Source: Winton, QLD, Australia
Size and weight are approximate
Opal Earrings 14k Yellow Gold Diamond
Australian opal earrings set in 14K yellow gold feature natural diamond accents. Comes with a gift box and jewelry cleaning cloth.
Metal: Solid 14K Yellow Gold (Stamped)
Opal Type: Australian Opal Doublet
Gemstone: Natural Diamonds
Earring Size: 10.8 x 9.4 mm approx
Total Weight: 8.59 ct
7.22ct Crystal Boulder Opal
AU$1,0717.22ct Australian Crystal Boulder Opal from Queensland displays luminous green fire glowing through its translucent crystal body. Expertly polished and 100% natural, this untreated gemstone is ideal for fine jewelry design or as a meaningful October birthstone collector piece.
Type: Natural Solid Boulder Opal (Boulder Pipe Opal)
Origin: Queensland, Australia
Dimensions: 27.7 × 14.7 × 8.5 mm (approx.)
Weight: 21.34 ct (approx.)
Color: Green and turquoise fire through sandstone matrix
Cut/Shape: Oval cabochon, polished finish
Treatment: 100% natural, untreated opal (not a doublet or triplet)
Sterling Silver Purple Boulder Opal Ring 30 ct US 8
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 27x15x5.5 mm
Whole Ring Weight: 30 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
44.69ct Large Natural Boulder Opal Winton Blue Fire
AU$1,064
Opal Details
Type: Natural Boulder Opal
Origin: Winton, Queensland, Australia
Dimensions: 47 × 17.5 × 6.2 mm approx
Weight: 44.69 ct approx
1.2ct Dark Opal Multicolor flash
AU$1,064Natural Solid Untreated Dark Opal / Semi Black Opal Polished Stone
Weight: 1.2 ct
Dimensions: 9x8x5.2 mm
Source : Lightning Ridge, NSW, Australia
Size and weight are approximate
Crystal Boulder Opal Rubs Rough Parcel 374ct
Weight: 374 ct total weight
Dimensions: See ruler in image
Source: Winton, QLD, Australia
Price: $925
Quantity: 20 Pieces
Description:
Note: Opals are wet to show color and taken under LED Lighting. Price includes Worldwide Registered Shipping.
1.4ct Natural Dark Opal Lightning Ridge
AU$1,050100% Natural Dark Opal / Semi Black Opal Polished stone
Weight : 1.40 ct
Dimension : 10x7x2 mm
Source : Lightning Ridge, NSW, Australia
(Size and weight are approximate)
Natural Dark Opal 1.1 ct
AU$1,035Natural Solid Untreated Lightning Ridge Dark Opal / Semi Black Opal Polished Stone
Weight: 1.1 ct
Dimensions: 9.5x7x2 mm
Source : Lightning Ridge, NSW, Australia
Size and weight are approximate
2.72ct Dark Opal MultiColor Fire
AU$1,028Source: Lightning Ridge, NSW, Australia
Dimensions: 13x7x4 mm approx
Weight: 2.72ct approx
10x5mm Crystal Opal Calibrated 7ct
AU$1,000Australian crystal opal calibrated parcel from Coober Pedy featuring fifteen marquise cut cabochons. Displaying bright neon fire with orange yellow green blue and cyan flashes. Ideal for professional jewelry making, matched designs, and custom settings.
Type: Natural Crystal Opal Calibrated Parcel
Origin: Coober Pedy South Australia
Quantity: 15 pieces
Total Weight: 7ctw
Stone Size: 10 x 5 mm approx
Shape: Marquise polished cabochon
Color: Bright neon fire with orange yellow green blue and cyan flashes
Appearance: Crystal to semi crystal transparency
Treatment: 100% natural untreated opal not doublet or triplet
Suitable For: Rings earrings pendants matched jewelry sets
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.