Natural crystal boulder opal 23.21 ct long oval stone on a black background video cover showing bright green and yellow fire.
Natural crystal boulder opal 23.21 ct close up face view showing neon green with yellow and blue flashes.
Natural crystal boulder opal 23.21 ct face view in palm showing green yellow and blue color play across the stone.
Natural crystal boulder opal 23.21 ct long oval cabochon on hand showing bright green and yellow color play.
Natural crystal boulder opal 23.21 ct side view in fingers showing thin profile and green fire along the length.
Natural crystal boulder opal 23.21 ct edge view on fingers showing the cabochon curve and bright green color play.
Natural crystal boulder opal 23.21 ct full length on hand showing size with neon green yellow color play.
Natural crystal boulder opal 23.21 ct long oval face view on black showing full pattern and strong green fire.

This 23.21ct natural pipe crystal boulder opal from Winton, Queensland, Australia, is a polished elongated gemstone with bright orange, yellow, and green fire.
Measuring 41.7 ร— 13 ร— 5.8 mm, this cabochon is cut and polished on both sides, giving jewelers and collectors versatile design options.

Pipe crystal opals are rare formations created when opal fills ancient fossilized structures, producing gemstones with unique translucent bodies and vibrant fire. This opal glows with neon orange, golden yellow, and vivid green flashes that shift beautifully under natural and artificial light.
The double sided polish enhances its brightness and ensures it looks stunning from every angle.

Guaranteed 100% natural and untreated, this gemstone is not a doublet or triplet.
It is ethically sourced from Winton, one of Queenslandโ€™s world renowned opal fields.
Its substantial size, vibrant fire, and polished finish make it ideal for custom jewelry, whether a bold pendant, luxury ring, or collectorโ€™s display piece.

As the October birthstone, opal symbolizes creativity, inspiration, and emotional strength.
At 23.21ct, this gemstone offers both beauty and rarity, appealing to fine jewelry designers and collectors seeking a standout Australian opal.

We will ship this opal securely in our signature Opal Galaxy gift box for a premium unboxing experience.

Registered Shipping $15 under $200
Free Registered Shipping over $201
Free Worldwide EMS Express Shipping over $1000
Free Worldwide FedEx Shipping over $4000
Extra Cost $25 EMS Shipping Upgrade under $200
Extra Cost $10 EMS Shipping Upgrade under $999
Extra Cost $80 FedEx Shipping Upgrade under $3999

All shipping includes complimentary insurance.
Please view ourย Shipping Policyย page for more information.

7 day return and refund policy.
Please view ourย Return and Refundย page for more information.

We offer a lifetime guarantee for natural cracks that may form in our opals.
There is a very low chance that this can happen, however occasionally it might.
Our guarantee excludes any opals sold with existing fractures.
Please view our Terms and Conditions.

Caring for Your Australian Opal

Opal Jewelry

Important: Opals Are Fragile Gemstones
Opals are softer than sapphires, rubies, or diamonds and will crack or chip if struck hard against solid surfaces.

Always remove opal jewelry before:
Sports or physical activities
Manual labor, gardening, or gym workouts
Household tasks where impact is possible (lifting, moving furniture, etc.)

Even a minor knock during everyday wear can cause permanent damage. Treat opals as delicate gemstones, not everyday workwear.

Cleaning Your Opal

Clean with warm water and mild soap. Avoid harsh chemicals like bleach, ammonia, or chlorine. Light exposure to hand soap or dishwashing detergent is safe.

Storage

Store opal jewelry separately from harder gemstones (diamonds, sapphires) to prevent scratching.

Solid Natural Opals

(Black, Boulder, Crystal, White Opal)
Natural solid opals are stable and won't change color or crack from water, humidity, or temperature changes. They are safe to submerge in water and can be worn daily, provided they are protected from physical impact. Solid opals are a single piece of gemstone with no artificial backing, making them ideal for heirloom quality jewelry when handled with care.

Opal Doublets

Opal doublets consist of a thin slice of natural opal bonded to a dark backing. Do not submerge doublets in water as prolonged exposure can weaken the adhesive bond and cause separation or cloudiness. Remove doublet jewelry before swimming, bathing, or washing dishes. Clean with a damp cloth only; do not soak or use ultrasonic cleaners.

Like all opals, doublets are fragile and must be protected from impact.

Not sure which type you have? Solid opals show natural color throughout the stone. Doublets have a visible dark backing layer when viewed from the side.

Add to Wishlist

23.21ct Solid Pipe Crystal boulder Opal Bright Orange Yellow Green Fire

AU$7,839

In stock

Details

Dimension:

41.7x13x5.8 mm

Weight:

23.21 ct

Type:

Natural Solid Untreated Crystalย Boulderย Opal

Source:

Winton, QLD, Australia

Sku:

PP548

This 23.21ct natural pipe crystal boulder opal from Winton, Queensland, Australia, is a polished elongated gemstone with bright orange, yellow, and green fire.
Measuring 41.7 ร— 13 ร— 5.8 mm, this cabochon is cut and polished on both sides, giving jewelers and collectors versatile design options.

Pipe crystal opals are rare formations created when opal fills ancient fossilized structures, producing gemstones with unique translucent bodies and vibrant fire. This opal glows with neon orange, golden yellow, and vivid green flashes that shift beautifully under natural and artificial light.
The double sided polish enhances its brightness and ensures it looks stunning from every angle.

Guaranteed 100% natural and untreated, this gemstone is not a doublet or triplet.
It is ethically sourced from Winton, one of Queenslandโ€™s world renowned opal fields.
Its substantial size, vibrant fire, and polished finish make it ideal for custom jewelry, whether a bold pendant, luxury ring, or collectorโ€™s display piece.

As the October birthstone, opal symbolizes creativity, inspiration, and emotional strength.
At 23.21ct, this gemstone offers both beauty and rarity, appealing to fine jewelry designers and collectors seeking a standout Australian opal.

We will ship this opal securely in our signature Opal Galaxy gift box for a premium unboxing experience.

Registered Shipping $15 under $200
Free Registered Shipping over $201
Free Worldwide EMS Express Shipping over $1000
Free Worldwide FedEx Shipping over $4000
Extra Cost $25 EMS Shipping Upgrade under $200
Extra Cost $10 EMS Shipping Upgrade under $999
Extra Cost $80 FedEx Shipping Upgrade under $3999

All shipping includes complimentary insurance.
Please view ourย Shipping Policyย page for more information.

7 day return and refund policy.
Please view ourย Return and Refundย page for more information.

We offer a lifetime guarantee for natural cracks that may form in our opals. There is a very low chance that this can happen, however occasionally it might. Our guarantee excludes any opals sold with existing fractures.
Please view our Terms and Conditions.

Caring for Your Australian Opal

Opal Jewelry

Important: Opals Are Fragile Gemstones
Opals are softer than sapphires, rubies, or diamonds and will crack or chip if struck hard against solid surfaces.

Always remove opal jewelry before:
Sports or physical activities
Manual labor, gardening, or gym workouts
Household tasks where impact is possible (lifting, moving furniture, etc.)

Even a minor knock during everyday wear can cause permanent damage. Treat opals as delicate gemstones, not everyday workwear.

Cleaning Your Opal

Clean with warm water and mild soap. Avoid harsh chemicals like bleach, ammonia, or chlorine. Light exposure to hand soap or dishwashing detergent is safe.

Storage

Store opal jewelry separately from harder gemstones (diamonds, sapphires) to prevent scratching.

Solid Natural Opals

(Black, Boulder, Crystal, White Opal)
Natural solid opals are stable and won't change color or crack from water, humidity, or temperature changes. They are safe to submerge in water and can be worn daily, provided they are protected from physical impact. Solid opals are a single piece of gemstone with no artificial backing, making them ideal for heirloom quality jewelry when handled with care.

Opal Doublets

Opal doublets consist of a thin slice of natural opal bonded to a dark backing. Do not submerge doublets in water as prolonged exposure can weaken the adhesive bond and cause separation or cloudiness. Remove doublet jewelry before swimming, bathing, or washing dishes. Clean with a damp cloth only; do not soak or use ultrasonic cleaners.

Like all opals, doublets are fragile and must be protected from impact.

Not sure which type you have? Solid opals show natural color throughout the stone. Doublets have a visible dark backing layer when viewed from the side.

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