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Boulder Opal Ring Sterling Silver Size 10

AU$666

Accent Stone: Faceted Amethyst

Setting: Bezel set opal with prong set amethyst

Ring Size: US 10

Opal Weight: 1.1ct

Amethyst Weight: 0.63ct

Total Weight: 11.2ctw

 

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3mm Round Calibrated Opal Doublet Parcel 2.85ct

AU$666

Australian 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

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Crystal Boulder Opal Pendant Sterling Silver 24.5ct

AU$666

Type: Natural Solid Crystal Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 24.5ctw approx. including pendant and necklace
Dimensions: 10 x 16.5 x 4.7 mm approx
Color: pink, orange, green
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal

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Australian Boulder Opal Multicolor Fire 0.86ct

AU$659

Genuine Australian boulder opal features bright orange and green fire. Ready to make into a custom ring or jewelry design.
Dimensions: 8 mm x 6 mm x 2.5 mm
Type: Solid Natural Boulder Opal
Origin: Winton, Queensland, Australia
Weight: 0.86ct
Treatment: 100% natural untreated opal (not a doublet or triplet)

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7.6ct Natural Boulder Opal Blue Green

AU$659

Opal: 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

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0.77ct Natural Dark Opal Multicolor fire

AU$659

100% Natural Solid Dark Opal Polished Stone
Weight: 0.77 ct
Dimensions: 9.5x6x2 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate

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5.9ct Natural Dark Opal Lightning Ridge

AU$659

Opal Details:

Natural Solid Untreated Australian Lightning Ridge Dark Opal / Semi Black Opal Polished Stone
Weight : 5.9 ct
Dimension : 17x11x4.3 mm
Source : Lightning Ridge, NSW, Australia
Size and weight are approximate

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Close view of 27 ct purple teardrop boulder opal pendant from Winton Australia in a sterling silver setting
New
Natural 27 ct purple Australian boulder opal teardrop pendant shown worn on a silver necklace

Silver Boulder Opal Pendant Purple Teardrop 27 ct

AU$652
Select options This product has multiple variants. The options may be chosen on the product page
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40.2 ct wood fossil boulder opal pendant from Winton Australia with pink orange color and natural brown matrix
New
40.2 ct Winton wood fossil boulder opal pendant shown worn on a black necklace with teardrop sterling silver setting

Silver Boulder Opal Pendant Wood Fossil 40.2 ct

AU$652

NN650
Silver Boulder Opal Pendant Wood Fossil
40.2 ct
/silver-boulder-opal-pendant-40-2ct
40.2 ct
36.7×18.1×5.8 mm
Natural Solid Untreated Boulder Opal
Winton, QLD, Australia
Pink, Orange
Teardrop
Pendant: S925 Stamped Sterling Silver with Rhodium Plated

Select options This product has multiple variants. The options may be chosen on the product page
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Silver Australian Boulder Opal Pendant with Necklace 24 ct

AU$652

Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 31×13.5×4.6 mm
Whole Pendant Weight: 24 ct
(Size and weight are approximate)

Select options This product has multiple variants. The options may be chosen on the product page
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Boulder Opal Pendant Sterling Silver Necklace

AU$652

Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 23.7ctw approx. including pendant and necklace
Dimensions: 9 x 20 x 4 mm approx
Color: deep 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

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Boulder Opal Pendant Sterling Silver Necklace

AU$652

Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 25.5ctw approx. including pendant and necklace
Dimensions: 9 x 21 x 4 mm approx
Color: green with hint of pink
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal

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Boulder Opal Pendant Sterling Silver Purple 25.6ct

AU$652

Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 25.6ctw approx. including pendant and necklace
Dimensions: 9 x 23 x 4 mm approx
Color: purple blue
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal

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Boulder Opal Pendant 103ct Multicolor Fire

AU$652

Electric rainbow veins glow through natural ironstone in this 103ct Australian boulder opal pendant. Hand polished and set on an adjustable black cord, perfect for bold October birthstone jewelry.

Dimensions: 38 × 33 × 11 mm approx
Weight: 103ct approx
Origin: Winton, Queensland, Australia
Opal Type: Natural Solid Boulder Opal
Necklace: Adjustable black cord, gift ready
Treatment: None (100% natural, not a doublet or triplet)
Additional custom lighting image requests are not available.

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Boulder Opal Pendant Sterling Silver 35.7ct

AU$638

Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 35.7ctw approx. including pendant and necklace
Dimensions: 13.5 x 26 x 4 mm approx
Color: green and blue matrix
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal

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Sterling Silver Sparkling Boulder Opal Ring US 7

AU$631

Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 14.5x11x4 mm
Whole Ring Weight: 16 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

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4.28ct Natural Boulder Opal

AU$631

Natural Solid Untreated Polished 
Weight: 4.28 carats
Dimensions: 17x7x4 mm
Source: Winton, QLD, Australia
Size and weight are approximate

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Boulder Opal Pendant Hand Carved 170 ct

AU$624
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Opal Doublet Pair Multicolor Fire 4.82ct

AU$624

Australian opal doublet set with intense neon green, orange, yellow, and blue fire. Ideal for statement earrings, pendants, rings and custom designer jewelry.

Stone Type: Australian Opal Doublet
Origin: Australia
Size: 15.1 x 7.9 mm and 8.9 x 5.3 mm approx
Total Weight: 2.41ctw approx

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1.11ct Black Crystal Opal Heart – Green & Blue Fire

AU$624

Opal Details:

Type: Natural, Solid, Untreated Black Crystal Opal
Origin: Lightning Ridge, Australia
Dimensions: 9.3×7.3×2.9mm (approx.)
Weight: 1.11ct (approx.)

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.