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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
3mm Round Calibrated Opal Doublet Parcel 3.01ct
AU$34225pcs calibrated 3mm round opal doublet parcel with a total weight of 3.01ctw. Matched stones showing vivid green and blue fire, professionally polished and precision calibrated. Ideal for halo settings, earrings, rings, and fine detailed jewelry work.
Stone Type: Natural Australian Opal Doublet
Construction: Genuine precious opal bonded to natural ironstone backing
Size: 3mm calibrated
Quantity: 25 stones
Total Weight: 3.01ctw approx
Fire Color: Green and blue fire
Finish: Polished cabochon
Treatment: Natural opal doublet (not a solid opal or triplet)
Suitable For: Earrings, pendants, rings, accent stones, calibrated settings, fine jewelry, October birthstone designs
Opal Doublet Pair 1.96ct
AU$485Australian opal doublet set with Vivid red and multicolor fire. Ideal for custom ring and pendant designs.
Stone Type: Australian Opal Doublet
Size : Round 4mm round approx
Size: 7.6 x 11.1mm approx
Total Weight: 1.96ctw approx
Origin: Australia
Suitable For: Rings, pendants, earrings, custom jewelry
Opal Doublet 16.1ct Red Multicolor Fire
AU$2,565Australian opal doublet with intense red and multicolor fire. Freeform loose stone for pendants, and October birthstone jewelry.
Dimensions: 34.1 x 19.4 x 2.9 mm approx
Weight: 16.1 ct approx
Type: Australian Opal Doublet
Suitable For: Rings, pendants, custom jewelry settings
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 Sterling Silver Ocean Blue 24.7ct
AU$955Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 29.7 ctw approx. including pendant and necklace
Dimensions: 9.4 x 25.8 x 3.6 mm approx
Color: ocean 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 24.7ct
AU$599Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 24.7ctw approx. including pendant and necklace
Dimensions: 10 x 17.5 x 4.5 mm approx
Color: ocean 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 28.8ct
AU$741Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 28.8ctw approx. including pendant and necklace
Dimensions: 9.6 × 25.5 × 4 mm approx
Color: Vivid blue and green fire
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal
Opal Earrings Studs 14K Yellow Gold
AU$426Brilliant multicolor Fire Australian opal stud earrings set in solid 14K yellow gold.Â
Metal: Solid 14K Yellow Gold (Stamped)
Opal Type: Australian Opal Doublet
Opal Color: Orange, Yellow, Green Blue
Stone Size: 4 mm round approx
Total Weight: 3.29ct
Rainbow Boulder Opal Pendant Sterling Silver 24.5ct
AU$627Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 24.5ctw approx. including pendant and necklace
Dimensions: 7.6 x 20 x 4 mm approx
Color: Rainbow
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Necklace: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal
Boulder Opal Pendant Sterling Silver Teal Green 31ct
AU$884Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 31ctw approx. including pendant and necklace
Dimensions: 13 x 25 x 4.5 mm approx
Color: teal 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 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
Boulder Opal Pendant Sterling Silver 31.9ct
AU$1,083Type: Natural Solid Boulder Opal Necklace
Origin: Winton, Queensland, Australia
Weight: 31.9ctw approx. including pendant and necklace
Dimensions: 11 x 23 x 9 mm approx
Color: Vivid blue and green fire
Shape: Elongated horizontal polished cabochon
Metal: 925 sterling silver pendant and necklace (stamped)
Chain: 18 inch (slightly adjustable)
Treatment: 100% natural untreated opal
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
5 Piece Sliced Koroit Boulder Opal Rough Parcel 1.1kg
Original price was: AU$470.AU$353Current price is: AU$353.Weight: 1.1 kilogram total weight
Dimensions: see ruler in image
Source: Koroit, QLD, Australia
Quantity: 5 Pieces
Photos and Video taken under LED Lighting. Opals are wet to show color. Price includes Worldwide Shipping.
Opal Doublet Parcel 1.69ct Mixed Size
AU$463Mixed size Australian opal doublet parcel 1.69ctw, featuring vivid red, orange, yellow, green, blue, and cyan fire. Calibrated and freeform cabochons perfect for jewelers, designers, and collectors seeking vivid Australian opal doublets for creative jewelry applications.
Stone Type: Australian Opal Doublet
Quantity: 4 stones (matched set)
Total Weight: 1.69ctw approx
Dimensions: 10x5mm, 8x4mm, 6x3mm Marquise, 3mm round
Color: Red, orange, yellow, green, blue, cyan fire
Shape: Mixed calibrated and freeform cabochons
Treatment: Opal doublet (natural crystal opal bonded to ironstone)
Suitable For: Earrings, pendants, matching jewelry sets, custom designs
Opal Doublet Parcel 2.56ct
AU$463Australian opal doublet freeform parcel totaling 2.56ctw, featuring vivid metallic flashes of orange, yellow, green, blue, and cyan. Three individually polished cabochons ideal for custom earrings, pendants, and bespoke jewelry designs.
Stone Type: Australian Opal Doublet
Quantity: 3 stones (matched set)
Total Weight: 2.56ctw approx
Dimensions: 11.8 x 4.3 mm / 10 x 5.5 mm / 8.7 x 4.6 mm
Color: Orange, yellow, green, blue, cyan fire
Shape: Freform cabochon
Treatment: Opal doublet (natural crystal opal bonded to ironstone)
Suitable For: Earrings, pendants, custom jewelry, accent stones
Perfect for jewelers, designers, and collectors seeking vivid Australian opal doublets for creative jewelry applications.
Opal Doublet 6.4ct Calibrated 15x10mm 9x7mm
AU$499Calibrated Australian opal doublet matching set totaling 6.4ctw, including one 15x10mm oval and two 9x7mm ovals. Displays vivid pink, orange, yellow, green, blue, and cyan fire. Ideal for coordinated earring and pendant jewelry designs.
Stone Type: Australian Opal Doublet
Quantity: 3 stones (matched set)
Total Weight: 6.4ctw approx
Dimensions:15 × 10 mm / 9 × 7 mm
Color: Pink, orange, yellow, green, blue, cyan
Shape: Oval calibrated cabochon
Treatment: Opal doublet (natural crystal opal bonded to ironstone)
Suitable For: Earrings, pendant center stone, matching jewelry sets, fine jewelry design
Opal Doublet Pair 4.59ct
AU$4284.59ctw Australian opal doublet freeform pair featuring vivid red, orange, yellow, green, and blue fire. Professionally polished matched cabochons, ideal for earrings, pendants, and fine jewelry designs.
Stone Type: Natural Australian Opal Doublet
Quantity: 2 stones (matched pair)
Total Weight: 4.59ctw approx
Dimensions: 15 x 7.3 x 2 mm approx
Color: Red, orange, yellow, green, blue
Shape: Freeform calibrated cabochon
Treatment: Opal doublet (natural crystal opal bonded to ironstone)
Suitable For: Earrings, rings, pendants, matched settings, fine 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.