Front face image with electric rainbow across ironstone
Closeup view of fossil opal showing neon fire and cracked pattern
Handshot showing scale and color movement
Edge view with polished surface and layered host
Side profile showing polished top and natural base
Concave shape enhancing fire from multiple angles
Vertical display with intense fireplay and texture
10.78ct Natural Wood Fossil Boulder Opal Neon Rainbow Fire - Copy

Top grade natural wood fossil boulder opal from Queensland Australia
Hand cut and polished with exceptional attention to finish
Neon rainbow fire through ancient fossil wood structure
Rare concave face enhances light movement
October birthstone with premium brilliance

Description:

This 10.78ct top grade wood fossil boulder opal from Queensland is a masterfully finished gemstone with elite fire and a unique concave structure.
Cut and polished with extreme care using fine hand tools, the glassy curved face brings out vivid neon fire in a spectrum of colors including red green blue orange yellow and violet.
Every angle reveals a new layer of depth and brilliance.

Set within an ancient fossilized wood matrix, the opal's color shimmers like a galaxy of light against earthy ironstone.
Its sculptural form is not only visually rare but also technically difficult to achieve.
This level of fire combined with expert polish and natural fossil detail makes this a world class example of Australian opal.

No treatments no fillers no synthetic backing.
This is a one piece opal chosen for its rare fire and carefully shaped to enhance its full potential.
Ideal for a luxury pendant or centerpiece in a fine gemstone collection.

About Boulder Opals

Boulder Opal is a beautiful type of precious opal that is unique to Queensland, Australia. Boulder Opal is usually found in Ironstone, but sometimes found in sandstone which is referred to as Pipe Boulder Opal or Crystal Opal. Boulder opal is popularly used in pendant necklace designs, as well as in rings by jewelers around the world. Read more here about boulder opals

Please be aware that slight color variations in our opals may occur due to differences in screen configurations.

Registered Shipping $15 under $200
Free Registered Shipping over $201
Free Worldwide EMS Express Shipping over $1000
Free Worldwide FedEx Shipping over $6500
Extra Cost $25 EMS Shipping Upgrade under $200
Extra Cost $10 EMS Shipping Upgrade under $999
Extra Cost $100 FedEx Shipping Upgrade under $6499
All shipping includes complimentary insurance.
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.

Australian Opals do not change their appearance after exposure to heat / climate / humidity / water.
An Australian Opal will not be damaged when exposed to light chemicals such as dishwashing detergent or hand soap. You should not however expose your opal to hasher chemicals such as bleach or ammonia.
They are however susceptible to cracking if knocked hard enough. If wearing your opal set in a ring you should always be careful that it is not knocked during physical activities.
If undertaking some form of sport or manual labour, please take off your ring or other opal jewelry so that it is not damaged.

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10.78ct Natural Wood Fossil Boulder Opal Neon Rainbow Fire

AU$1,513

In stock

Dimensions

22.5x13.3x4.3 mm

Weight

10.78ct

Type

Natural Solid Untreated Boulder Opal

Source

Winton, QLD, Australia

SKU

XX1866

Top grade natural wood fossil boulder opal from Queensland Australia
Hand cut and polished with exceptional attention to finish
Neon rainbow fire through ancient fossil wood structure
Rare concave face enhances light movement
October birthstone with premium brilliance

Description:

This 10.78ct top grade wood fossil boulder opal from Queensland is a masterfully finished gemstone with elite fire and a unique concave structure.
Cut and polished with extreme care using fine hand tools, the glassy curved face brings out vivid neon fire in a spectrum of colors including red green blue orange yellow and violet.
Every angle reveals a new layer of depth and brilliance.

Set within an ancient fossilized wood matrix, the opal's color shimmers like a galaxy of light against earthy ironstone.
Its sculptural form is not only visually rare but also technically difficult to achieve.
This level of fire combined with expert polish and natural fossil detail makes this a world class example of Australian opal.

No treatments no fillers no synthetic backing.
This is a one piece opal chosen for its rare fire and carefully shaped to enhance its full potential.
Ideal for a luxury pendant or centerpiece in a fine gemstone collection.

About Boulder Opals

Boulder Opal is a beautiful type of precious opal that is unique to Queensland, Australia. Boulder Opal is usually found in Ironstone, but sometimes found in sandstone which is referred to as Pipe Boulder Opal or Crystal Opal. Boulder opal is popularly used in pendant necklace designs, as well as in rings by jewelers around the world. Read more here about boulder opals

Please be aware that slight color variations in our opals may occur due to differences in screen configurations.

Registered Shipping $15 under $200
Free Registered Shipping over $201
Free Worldwide EMS Express Shipping over $1000
Free Worldwide FedEx Shipping over $6500
Extra Cost $25 EMS Shipping Upgrade under $200
Extra Cost $10 EMS Shipping Upgrade under $999
Extra Cost $100 FedEx Shipping Upgrade under $6499
All shipping includes complimentary insurance.
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.

Australian Opals do not change their appearance after exposure to heat / climate / humidity / water.
An Australian Opal will not be damaged when exposed to light chemicals such as dishwashing detergent or hand soap. You should not however expose your opal to hasher chemicals such as bleach or ammonia.
They are however susceptible to cracking if knocked hard enough. If wearing your opal set in a ring you should always be careful that it is not knocked during physical activities.
If undertaking some form of sport or manual labour, please take off your ring or other opal jewelry so that it is not damaged.

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Reviews
29.21ct Natural Boulder Opal
29.21ct Natural Boulder Opal
May 4 2025
This is a beautiful opal. I’m very happy with my purchase. Highly recommended seller

Lewis
2.1 ct Natural Boulder Opal
2.1 ct Natural Boulder Opal
Feb 27, 2025
So beautiful, looks just like the pictures. I’ll be back for more.

Kaitlyn
Gem Neon Green Blue Boulder Opal 12.8 ct
Gem Neon Green Blue Boulder Opal 12.8 ct
Apr 27, 2024
Exactly as pictured. Can't wait to get it set! Thanks

elegantdebra
51.96 ct Large Blue Oval Boulder Opal
51.96 ct Large Blue Oval Boulder Opal
Dec 6, 2023
Very good service and nice opals

Bob
Metallic Neon Fire Gem Boulder Opal 4.43 ct
Metallic Neon Fire Gem Boulder Opal 4.43 ct
Aug 31, 2023
The opal is just like the pictures (in the right light, of course -- that's just the nature of opal), and the description was accurate. I think the price was fair, the stone was wrapped securely and presented well, and it got here from Australia with no problem. This seems like a good shop to me!

Kate
Top Gem Multi Color Fire Boulder Opal Set 3.38 ctw
Top Gem Multi Color Fire Boulder Opal Set 3.38 ctw
May 3, 2023
What an incredible opal for my collection... wow. Can't thank you enough!!! :)

Julia Schwind
Neon Bright Metallic Multi Color Fire Absolute Gem Boulder Opal 2.27 ct
Neon Bright Metallic Multi Color Fire Absolute Gem Boulder Opal 2.27 ct
Apr 7, 2023
A lovely very bright opal. Thank you very much.

brent
Amazing Sparkling Green Blue Veins Boulder Opal 8.54 ct
Amazing Sparkling Green Blue Veins Boulder Opal 8.54 ct
Mar 8, 2023
As always a dream! As always, you get what you see in the pictures. As always, I stand by the window with my new piece and let the sunlight dance on it. For hours.

Cornelia
Neon Rainbow Strips Top Gem Australian Boulder Opal 23.9 ct
Neon Rainbow Strips Top Gem Australian Boulder Opal 23.9 ct
Feb 27, 2023
Lovely opal again!! Thanks and have a good day.

Brent
Gem Chaff Pattern Flash Rectangle Crystal Boulder Opal 2.91 ct
Gem Chaff Pattern Flash Rectangle Crystal Boulder Opal 2.91 ct
Feb 4, 2023
The Opal is so pretty and thank you for the gift of the amethyst too!

Debbie
Gem Rainbow Fire Boulder Opal 2.75 ct
Gem Rainbow Fire Boulder Opal 2.75 ct
Nov 7, 2022
I purchased it from Japan. Since the owner was also Japan people, we were able to communicate with him in the Japanese, and he answered questions before purchasing, so I was able to wait for the arrival with peace of mind. In addition, it arrived earlier than originally planned and was carefully packed. Opal is also satisfied with the very beautiful quality almost exactly as pictured! Thank you again if you have any transactions.

Saki