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Crystal Boulder Opal Pendant Sterling Silver 24.5ct
AU$684Type: 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
1.19ct Natural Dark Opal Heart – Green Fire
AU$684Opal Details:
Type: Natural, Solid, Untreated Dark Opal
Origin: Lightning Ridge, Australia
Dimensions: 6.5×9.7×2.8mm (approx.)
Weight: 1.19ct (approx.)
7.6ct Natural Boulder Opal Blue Green
AU$677Opal: 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
0.77ct Natural Dark Opal Multicolor fire
AU$677100% Natural Solid Dark Opal Polished Stone
Weight: 0.77 ct
Dimensions: 9.5x6x2 mm
Source: Lightning Ridge, NSW, Australia
Size and weight are approximate
5.9ct Natural Dark Opal Lightning Ridge
AU$677Opal 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
Silver Australian Boulder Opal Pendant with Necklace 24 ct
AU$670Pendant: 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)
Boulder Opal Pendant Sterling Silver Necklace
AU$670Type: 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
Boulder Opal Pendant Sterling Silver Necklace
AU$670Type: 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
Boulder Opal Pendant Sterling Silver Purple 25.6ct
AU$670Type: 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
Boulder Opal Pendant 103ct Multicolor Fire
AU$670Electric 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.
Boulder Opal Rubs Rough Parcel 4 Piece 113g
Original price was: AU$884.AU$663Current price is: AU$663.Weight: 113 grams total weight
Dimensions: See ruler in image
Quantity: 4 Pieces
Source: Winton, QLD, Australia
Price: $620
Description: Opal rubs are wet to show color and taken under LED lighting. Price includes Worldwide Shipping with Insurance.
Boulder Opal Pendant Sterling Silver 35.7ct
AU$656Type: 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
Sterling Silver Sparkling Boulder Opal Ring US 7
AU$648Opal: 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
4.28ct Natural Boulder Opal
AU$648Natural Solid Untreated PolishedÂ
Weight: 4.28 carats
Dimensions: 17x7x4 mm
Source: Winton, QLD, Australia
Size and weight are approximate
Boulder Opal Pendant 26 ct, Sterling Silver Blue Purple Opal
AU$641Pendant: S925 Stamped Sterling Silver with Rhodium Plated
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Setting Dimensions: 31x17x5 mm approx
Whole Pendant Weight: 26 ct approx
60ct Silver Koroit Boulder Opal Pendant Orange
AU$641Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Koroit, Queensland, Australia
Dimensions: 46x25x6mm
Whole Pendant Weight: 60 ct
(Size and weight are approximate)
Silver Multi Color Boulder Opal Pendant with Necklace 18.7 ct
AU$641Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 28x9x5 mm
Whole Pendant Weight: 18.7 ct
(Size and weight are approximate)
Silver Boulder Opal Pendant with Necklace 27.6 ct – Blue Green
AU$641Pendant: S925 Stamped Rhodium Plated Sterling Silver
Opal: Natural, Solid, Untreated, Polished
Source: Queensland, Australia
Dimensions: 41x10x6 mm
Whole Pendant Weight: 27.6 ct
(Size and weight are approximate)
Opal Doublet Pair Multicolor Fire 4.82ct
AU$641Australian 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
1.11ct Black Crystal Opal Heart – Green & Blue Fire
AU$641Opal 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.