31.05ct solid Koroit boulder opal from Queensland, Australia with natural patterned matrix. 100% natural untreated gemstone perfect for collectors or jewelry making.
Oval Shape Koroit Boulder Opal Polished Stone 31.05 ct
Oval Shape Koroit Boulder Opal Polished Stone 31.05 ct
Oval Shape Koroit Boulder Opal Polished Stone 31.05 ct
kk16 s
kk16 b
Oval Shape Koroit Boulder Opal Polished Stone 31.05 ct

This 31.05ct solid Australian Koroit boulder opal was mined in the opal fields of Queensland, renowned for their richly patterned and highly collectible opals.
The surface reveals intricate veins of opal color intertwined through ironstone, forming striking natural artwork unique to Koroit.
Measuring approximately 23 x 20 x 8 mm, this opalโ€™s oval cabochon cut enhances both its visual balance and durability.

Completely natural and untreated, this boulder opal embodies the beauty of Australiaโ€™s outback, earthy, vibrant, and timeless.
The complex interplay of pattern and color makes it an outstanding specimen for collectors, or an inspiring centerpiece for custom jewelry.

As an opal October birthstone, it represents creativity, inspiration, and emotional depth, symbolizing renewal and artistic energy.
Each Koroit opal tells its own geological story, and this piece captures that legacy through its polished finish and natural matrix design.

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

Watch more unique opals on our YouTube Channel

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.

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.

Add to Wishlist

31ct Natural Koroit Boulder Opal Matrix

AU$80

In stock

Details

Dimension:

23x20x8 mm

Weight:

31ct

Type:

Natural Solid Untreated Boulder Opal

Source:

Koroit, QLD, Australia

Sku:

KK16

This 31.05ct solid Australian Koroit boulder opal was mined in the opal fields of Queensland, renowned for their richly patterned and highly collectible opals.
The surface reveals intricate veins of opal color intertwined through ironstone, forming striking natural artwork unique to Koroit.
Measuring approximately 23 x 20 x 8 mm, this opalโ€™s oval cabochon cut enhances both its visual balance and durability.

Completely natural and untreated, this boulder opal embodies the beauty of Australiaโ€™s outback, earthy, vibrant, and timeless.
The complex interplay of pattern and color makes it an outstanding specimen for collectors, or an inspiring centerpiece for custom jewelry.

As an opal October birthstone, it represents creativity, inspiration, and emotional depth, symbolizing renewal and artistic energy.
Each Koroit opal tells its own geological story, and this piece captures that legacy through its polished finish and natural matrix design.

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

Watch more unique opals on our YouTube Channel

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.

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.

You may also like

Recently Viewed

Reviews