This 25.1ct crystal boulder opal is a stunning and bold gemstone ideal for collectors and custom statement jewelry. Its vivid base color contrasts beautifully with flashes of green and blue opalescence. The large size and smooth polish highlight the natural formation, with a substantial thickness that makes it perfect for rings, pendants, or display.
Features & Benefits:
Large Size An eye-catching 25.1ct stone for standout designs
Solid & Untreated 100% natural beauty from Australian earth
Unique Pattern Striking orange matrix with ethereal green-blue fire
Durable Thickness 9.5mm makes it ideal for various settings
Collectible Origin Winton is renowned for high-quality opal
Excellent Value Premium weight at a modest price point
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 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.
25.1ct Natural Crystal Boulder Opal
AU$385
In stock
Details
|
Dimension: |
23.5x19x9.5mm |
|
Weight: |
25.1ct |
|
Type: |
Natural Solid Untreated Crystal Boulder Opal |
|
Source: |
Winton, QLD, Australia |
|
Sku: |
PP299 |
This 25.1ct crystal boulder opal is a stunning and bold gemstone ideal for collectors and custom statement jewelry. Its vivid base color contrasts beautifully with flashes of green and blue opalescence. The large size and smooth polish highlight the natural formation, with a substantial thickness that makes it perfect for rings, pendants, or display.
Features & Benefits:
Large Size An eye-catching 25.1ct stone for standout designs
Solid & Untreated 100% natural beauty from Australian earth
Unique Pattern Striking orange matrix with ethereal green-blue fire
Durable Thickness 9.5mm makes it ideal for various settings
Collectible Origin Winton is renowned for high-quality opal
Excellent Value Premium weight at a modest price point
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 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.
Recently Viewed
Reviews
Oct 21 2025
The stone is beautifully cut and high quality. Shipping was quick despite current issues with some international shipping. Very appreciative. Also, beautifully and artfully wrapped.
Bruce
Bruce
Dec 6, 2023
Very good service and nice opals
Bob
Bob
May 3, 2023
What an incredible opal for my collection... wow. Can't thank you enough!!! :)
Julia Schwind
Julia Schwind
Apr 7, 2023
A lovely very bright opal. Thank you very much.
brent
brent
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
Cornelia
March 1 2025
I have bought several beautiful Australian opals from opalgalaxy and each one has been more beautiful than I ever could have expected. This will make a beautiful ring which I will have mounted in a shadow box type ring so the opal will be protected.
Sharie
Sharie
Oct 12, 2024
Thank you very much!! Incredibly beautiful opal, fast shipping, nicely packaged too.
Caitlin
Caitlin
Jun 18, 2024
Beautiful stone, lots of fire and flash! Gonna make a breathtaking ring!
Deborah
Deborah
Apr 25, 2024
My Opal is stunning and after seeing the first I bought two more. So excited to get my stone back from the jeweler all set in diamonds. Very nice polish quality and high quality specimens!!!
Rachael Rocha
Rachael Rocha
Oct 20, 2023
Arrived fast and in perfect condition! Incredible quality! Thanks so very much!
Brett
Brett
Aug 7, 2024
Arrived quickly. Absolutely beautiful opal. I'm so glad I decided to "go for it." This was a lot of money for me, but I think I have finally found the opal I've been looking for (after several tries). Thank you so much.
holbrookandtom
holbrookandtom
Jun 15, 2023
As presented and described very bright and colourful - excellent service - thank you.
Lynton
Lynton
Apr 7, 2023
An amazing opal. Thank you very much
Brent
Brent
Apr 7, 2023
Beautiful high quality opal quick delivery from the other side of the world. Will definitely be back for more.
Jaye
Jaye
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
Saki
Feb 19, 2023
A lovely opal. Thank you.
brent
brent
Dec 11, 2022
Michael is very easy to work with and shipping was very fast. I hope to do more in in future. Good seller.
Thomas L.
Thomas L.
Sep 17, 2024
This is so beautiful and delicate that I will be holding on to this set for a while. I will take a while for me the gain enough skill to attempt setting it. That's okay, because I still enjoy taking it out to look at it. I think I have a small cabochon that will match it nicely. If I can find a few more of different sizes I would have an amazing men's set. I think this would make a beautiful and subtle statement in a tie (slash) lapel pin which could also be worn as an ear ring if desired.
Clay
Clay
Sep 10, 2024
Thank you for your kind, polite and prompt response. It's a really wonderful stone! The light overflows from this faceted opal , so l can't take my eyes off it.
Jan 1, 2021
Love my opal, its colours are bright even in dim light, fantastic!!
Irene
Irene
May 26, 2024
Absolutely marvelous - stunning! I consider myself so lucky to have been able to pick up such a unique and excellent piece. Very grateful.
Richard
Richard
Apr 11, 2023
Superior flashiness in this opal…so lovely!
Sandy
Sandy
Mar 28, 2023
This opal is exceptional and matched the description and video beautifully. I got exceptional customer service as well.
Beverly S.
Beverly S.
Aug 24, 2022
Heat to heat. I love to make the colors of this opal dance in the sunlight. It's beautiful!!!!
Cornelia
Cornelia
Mar 19, 2022
Very pretty play of color. Love it!
Quiao
Quiao
