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Sterling Silver Blue Boulder Opal Ring 21.5 ct US 7 1/2
Original price was: AU$555.AU$472Current price is: AU$472.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
Wood Fossil Boulder Opal Pendant 95ct
Original price was: AU$548.AU$467Current price is: AU$467.95ct 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)
Blue Winton Rubbed Rough Boulder Opal Parcel 220g
Original price was: AU$619.AU$464Current price is: AU$464.Weight: 220 gram total weight
Dimensions: See ruler in image
Source: Winton, QLD, Australia
Price: $440
Quantity: 12 Pieces
Opals are wet to show color and taken under LED Lighting. Price includes Worldwide Registered Shipping.
92.35ct Natural Koroit Boulder Opal Large Teardrop
AU$464Type: Natural Solid Untreated Boulder Opal
Origin: Koroit, Queensland, Australia
Dimensions: 40 x 28 x 10 mm approx
Weight: 92.35ct approx
Color: Orange blue fire in natural boulder opal
Use: Ideal for custom opal ring, pendant, or fine jewelry
33.5ct Natural Boulder Opal Pendant Blue Green fire
Original price was: AU$541.AU$460Current price is: AU$460.33.5ct natural wood replacement boulder opal pendant from Winton, Queensland, Australia, vivid blue and green fire in rich brown ironstone. 100% natural, untreated gemstone necklace, ideal for October birthstone jewelry and opal collectors.
Sterling Silver Blue Green Boulder Opal Ring 24.5ct US7
Original price was: AU$541.AU$460Current price is: AU$460.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
Opal Doublet Parcel 1.69ct Mixed Size
AU$457Mixed 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$457Australian 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.
0.83ct Natural Black Opal Lightning Ridge
AU$457💎 Opal Details:
Type: Natural Black Opal
Origin: Lightning Ridge, Australia
Dimensions: 11 x 6.2 x 1.8 mm approx
Weight: 0.83ct approx
3.62ct Natural Crystal Boulder Opal
AU$457Natural Solid Untreated Australian Pipe Crystal Boulder Opal Polished Stone
Weight: 3.62 carats
Dimensions: 15x9x3.5 mm
Source: Winton, QLD, Australia
Size and weight are approximate
Aqua Blue Queensland Boulder Opal Teardrop Ringstone 3.7 ct
AU$457Natural Solid Untreated Australian Boulder Opal Polished Stone
Weight: 3.7 carats
Dimensions: 13x10x3.5 mm
Source: Winton, QLD, Australia
Size and weight are approximate
Sterling Silver Purple Boulder Opal Ring 23.5 ct US 8
Original price was: AU$534.AU$454Current price is: AU$454.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
Large Koroit Boulder Opal Pendant 86ct
Original price was: AU$534.AU$454Current price is: AU$454.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
35.3ct Silver Boulder Opal Pendant Brown Koroit Vein Pattern
Original price was: AU$534.AU$454Current price is: AU$454.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)
Silver Australian Boulder Opal Pendant with Necklace 18 ct
Original price was: AU$534.AU$454Current price is: AU$454.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)
Opal Doublet Parcel Calibrated Oval and Round 3.83ct
AU$450Australian opal doublet parcel with Bright golden green fire dominates this calibrated opal doublet parcel, supported by flashes of blue across multiple oval and round stones. The consistent color and polish make this parcel highly suitable for professional jewelry use.
Includes a mix of round and oval calibrated sizes, allowing flexible design for rings, earrings, pendants, or multi stone layouts.
Stone Type: Australian Opal Doublet
Origin: Coober Pedy, Australia
Size: 3 mm round, 5×3 mm, 6×4 mm, 7×5 mm, 8×6 mm
Total Weight: 3.83ctw approx
4.72ct Natural Dark Opal – Half Moon Multicolor
AU$450
Opal Details:
Type: 100% Natural, Solid, Untreated, Polished
Origin: Lightning Ridge, NSW, Australia
Dimensions: 24 × 9.3 × 3.5 mm (approx.)
Weight: 4.72ct (approx.)
3.4ct Natural Boulder Opal Deep Blue Fire
AU$450100% Natural Solid Boulder Opal Polished Stone
Weight: 3.4 ct
Dimensions: 14.8×8.2×3 mm
Source: Winton,QLD, Australia
Size and weight are approximate
Blue Winton Boulder Opal 5 ct
AU$450Natural Solid Untreated Boulder Opal Polished Stone
Weight: 5 carats
Dimensions: 16.5×8.5×3.2 mm
Source: Winton, QLD, Australia
Size and weight are approximate
5.38ct Natural Crystal Boulder Opal
AU$450Natural Solid Untreated Australian Pipe Crystal Boulder Opal Polished Stone
Weight: 5.38 carats
Dimensions: 15x10x3 mm
Source: Winton, QLD, Australia
Size and weight are approximate
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.