New
888ct crystal boulder opal rubs rough parcel of 8 pieces from Winton, Australia with blue, purple, and lavender crystal opal in natural sandy host rock. Natural, untreated.
888ct crystal boulder opal rubs parcel from Winton, Australia showing translucent blue and purple crystal fire across large polished faces. 100% natural and untreated.
888ct crystal boulder opal rubs rough parcel 8pc RP241 - Group Shot

Crystal Boulder Opal Rubs

This 888 carat parcel contains 8 large crystal boulder opal rubs sourced from the Winton opal fields in Queensland, Australia. These are heavy, substantial pieces averaging over 110 carats each, offering serious cutting volume in a single purchase.

The color across this parcel is consistent and appealing. Several pieces display broad windows of blue and purple crystal opal set within a warm orange sandy host rock, with the color shifting as light moves across the translucent sections. One piece stands apart from the rest, showing a dense network of blue opal veining running through a darker ironstone body, giving that stone a different texture and appeal compared to the softer crystal pieces around it. The remaining stones carry lavender, pink, and violet tones across broad polished faces.

These are thick pieces with real weight and volume, giving lapidary artists room to work multiple cutting angles for the strongest color result. The size also makes each piece suitable as a natural display specimen, with the contrast between the orange sandy rock and the blue and purple crystal opal creating strong visual appeal in the raw state.

At 888 carats across 8 pieces, this parcel provides excellent value per carat for genuine Winton crystal boulder opal at a large scale.

All 8 opals are 100% natural and completely untreated. These are not doublets or triplets. Photographs were taken wet under LED lighting. Dry appearance will differ. Price includes worldwide registered shipping.

This collection will arrive securely packaged in an Opal Galaxy gift box, making it ready for safe storage, jewelry setting, or presentation as a collector gemstone.

Learn about Opal Cutting 

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariff 

USA customers do not need to pay any tariffs on their purchase. Opal Galaxy covers all tariff charges to the USA, with no additional government fees added after checkout.

Delivery Status

USA: No delays
Asia: No delays
UK: Minor delays possible (Complimentary EMS Express upgrade)
Europe: Minor delays possible (Complimentary EMS Express upgrade)
Middle East: Shipping temporarily suspended - Please contact us to discuss shipping arrangements before purchase.

Shipping Information

All shipping includes complimentary insurance.

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 $100 FedEx Shipping Upgrade under $3999

Please view our Shipping Policy page for more information.

7 day return and refund policy.
Please view our Return and Refund 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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Crystal Boulder Opal Rubs Rough Parcel 888ct

AU$951

In stock

Details

Dimension:

See ruler in image

Weight:

888 ct total weight

Type:

Natural Solid Untreated Boulder Opal

Source:

Winton, QLD, Australia

Sku:

RP241

Notes

Quantity: 8 Pieces
Opals are wet to show color and taken under LED Lighting. Price includes Worldwide Registered Shipping.

Crystal Boulder Opal Rubs

This 888 carat parcel contains 8 large crystal boulder opal rubs sourced from the Winton opal fields in Queensland, Australia. These are heavy, substantial pieces averaging over 110 carats each, offering serious cutting volume in a single purchase.

The color across this parcel is consistent and appealing. Several pieces display broad windows of blue and purple crystal opal set within a warm orange sandy host rock, with the color shifting as light moves across the translucent sections. One piece stands apart from the rest, showing a dense network of blue opal veining running through a darker ironstone body, giving that stone a different texture and appeal compared to the softer crystal pieces around it. The remaining stones carry lavender, pink, and violet tones across broad polished faces.

These are thick pieces with real weight and volume, giving lapidary artists room to work multiple cutting angles for the strongest color result. The size also makes each piece suitable as a natural display specimen, with the contrast between the orange sandy rock and the blue and purple crystal opal creating strong visual appeal in the raw state.

At 888 carats across 8 pieces, this parcel provides excellent value per carat for genuine Winton crystal boulder opal at a large scale.

All 8 opals are 100% natural and completely untreated. These are not doublets or triplets. Photographs were taken wet under LED lighting. Dry appearance will differ. Price includes worldwide registered shipping.

This collection will arrive securely packaged in an Opal Galaxy gift box, making it ready for safe storage, jewelry setting, or presentation as a collector gemstone.

Learn about Opal Cutting 

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariff 

USA customers do not need to pay any tariffs on their purchase. Opal Galaxy covers all tariff charges to the USA, with no additional government fees added after checkout.

Delivery Status

USA: No delays
Asia: No delays
UK: Minor delays possible (Complimentary EMS Express upgrade)
Europe: Minor delays possible (Complimentary EMS Express upgrade)
Middle East: Shipping temporarily suspended - Please contact us to discuss shipping arrangements before purchase.

Shipping Information

All shipping includes complimentary insurance.

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 $100 FedEx Shipping Upgrade under $3999

Please view our Shipping Policy page for more information.

7 day return and refund policy.
Please view our Return and Refund 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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