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
Add to Wishlist

Boulder Opal Pendant Hand Carved 170 ct

AU$548
Add to Wishlist

1.25ct Natural Black Opal Green Blue

AU$548

💎 Opal Details:

  • Type: Natural, Solid, Untreated Black Opal
  • Origin: Lightning Ridge, Australia
  • Dimensions: 10.2×6.8×3 mm
  • Weight: 1.25ct
Add to Wishlist

1ct Natural Black Opal Lightning Ridge

AU$548

Opal Details:
Type: Natural Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 8x8x2.2 mm approx
Weight: 1ct approx

Add to Wishlist

Boulder Opal Ring 30ct Sterling Silver US9

AU$548

Deep purple and electric blue fire define this natural Australian boulder opal ring. Large rectangular bezel set in sterling silver, perfect for a bold statement and October birthstone jewelry.

Ring Size: US9 (size change not available)
Dimensions: 19 x 15 x 5.5 mm approx.
Weight: 30ct 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

Add to Wishlist

Sterling Silver Blue Purple Boulder Opal Ring 19 ct US 7

AU$548

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 19x11x5mm approx
Whole Ring Weight: 19 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm
Ring Size: US7 (Size change is not available)
Note: Opal contains a minor hairline fracture

Add to Wishlist

Sterling Silver Blue Rectangle Boulder Opal Ring 22 ct US 7

AU$548

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 16.5×11.5×4.5 mm approx
Whole Ring Weight: 22 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: US7 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver

Add to Wishlist

Sterling Silver Blue Boulder Opal Ring 21.5 ct US 7 1/2

AU$548

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 20x16x4 mm approx
Whole Ring Weight: 21.5 ct approx
Ring: S925 (Stamped), Rhodium Plated, Sterling Silver
Ring Band Dimension: 3.5 mm approx
Ring Size: US7 1/2 (Size change is not available)
Bezel set in Hypoallergenic Rhodium Plated 925 Sterling Silver

Add to Wishlist

15.3ct Natural Boulder Opal Deep Purple Blue Fire

AU$548

100% Natural Boulder Opal
Weight: 15.3 ct
Dimensions: 21.5x12x4.5 mm
Source: Winton, QLD, Australia

Add to Wishlist

33ct Double Sided Natural Koroit Boulder Opal

AU$548

100% Natural, Untreated, Polished
Dimensions : 26x23x7 mm
Weight: 33 ct
Source: Koroit, QLD, Australia
(Size and weight are approximate)

Add to Wishlist
90.5 ct purple boulder opal pendant from Winton Australia with natural brown matrix and sterling silver setting
New
Natural Winton boulder opal pendant shown worn on a black necklace with purple opal and contrasting brown matrix

Silver Boulder Opal Pendant 90.5 ct

AU$541
Select options This product has multiple variants. The options may be chosen on the product page
Add to Wishlist

Wood Fossil Boulder Opal Pendant 95ct

AU$541

95ct Australian Boulder Opal pendant from Winton displays vivid blue, green, and white opal patterns through natural wood fossil matrix. Polished freeform cut with brown adjustable necklace, this natural untreated gemstone pendant is ideal for daily wear, gifting, and meaningful October birthstone jewelry.

Type: Natural Solid Boulder Opal Pendant
Origin: Winton, Queensland Australia
Dimensions: 50x30x8 mm (approx.)
Weight: 95 ct (approx.)
Color: Blue green fire with white opal and wood fossil matrix
Cut/Shape: Polished freeform pendant
Necklace: Brown adjustable cord, ready to wear
Treatment: 100% natural untreated opal (not a doublet or triplet)

Add to Wishlist

Sterling Silver Blue Green Boulder Opal Ring 24.5ct US7

AU$534

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 21.5×10.5×4 mm approx
Whole Ring Weight: 21.5 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

Add to Wishlist

9.5ct Natural Boulder Opal Blue Green

AU$534

Opal: Natural, Solid, Untreated, Polished
Source: Winton, QLD, Australia
Dimensions: 17x17x4mm
Weight: 9.5 ct
Color: Blue, Green
Shape: Freeform (Triangular)
(Size and weight are approximate)

Add to Wishlist

2.2ct Natural Black Opal Blue Fire

AU$534

100% Natural Solid Black Opal Polished Stone
Weight: 2.20 ct
Dimensions: 12.5×7.5×4 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
Partially Transparent

Add to Wishlist

35.3ct Silver Boulder Opal Pendant Brown Koroit Vein Pattern

AU$527

Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Koroit, Queensland, Australia
Dimensions: 29×22.5×4.5mm
Whole Pendant Weight: 35.3 ct
(Size and weight are approximate)

Select options This product has multiple variants. The options may be chosen on the product page
Add to Wishlist

Silver Australian Boulder Opal Pendant with Necklace 18 ct

AU$527

Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 26x9x4.5 mm
Whole Pendant Weight: 18 ct
(Size and weight are approximate)

Select options This product has multiple variants. The options may be chosen on the product page
Add to Wishlist

7.2ct Crystal Boulder Opal

AU$527

7.2ct Australian Crystal Boulder Opal from Queensland reveals green fire glowing through translucent natural opal body. Expertly polished in oval cabochon cut, 100% natural and untreated, this gemstone is ideal for jewelry design, October birthstone, or collection.

Type: Natural Solid Crystal Boulder Opal
Origin: Queensland, Australia
Dimensions: 15.9 × 12.5 × 5.6 mm (approx.)
Weight: 7.2 carats (approx.)
Color: Green fire through translucent body tone
Cut/Shape: Oval cabochon
Treatment: 100% natural, untreated opal (not a doublet or triplet)

Add to Wishlist

Sterling Silver Purple Boulder Opal Ring 23.5 ct US 8

AU$527

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 18.5x14x5 mm
Whole Ring Weight: 23.5 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

Add to Wishlist

4.5ct Natural Faceted Crystal Opal Pair – Oval

AU$527

Opal Details:

Type: Natural, Solid, Untreated, Faceted Crystal Opal

Origin: Lightning Ridge, NSW, Australia

Dimensions: 12x10x3.5 mm each (approx.)

Weight: 4.5ct total (approx.)

Add to Wishlist

Large Koroit Boulder Opal Pendant 86ct

AU$527

Type: Natural Solid Untreated Boulder Opal

Origin: Koroit, Queensland, Australia

Dimensions: 44 × 27 × 10 mm approx

Weight: 86ct approx

Color: Rainbow sparkling fire including red green and blue in ironstone matrix

Necklace: Black rope length adjustable gift ready

Use: Unisex pendant daily wear or collector jewelry

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.