Crystal opal 4.26 ct on a black background showing close view of strong green fire and rainbow color play.
Crystal opal 4.26 ct on fingertips to show size with bright green fire and red flashes in the oval stone.
Crystal opal 4.26 ct held in fingers showing bright green color patches with rainbow sparks.
Side view of crystal opal 4.26 ct showing the dome shape and polished edge with green fire near the top.
Back view of crystal opal 4.26 ct held in fingers showing the clear base and oval shape.
Crystal opal 4.26 ct oval cabochon on a black background showing bright green fire with red and blue flashes.

This 4.26ct Natural Lightning Ridge Crystal Opal is a stunning gemstone from Lightning Ridge, Australia. Ethically sourced and 100% solid, this opal exhibits vibrant flashes of neon green, electric blue, and deep orange against a translucent base. The oval shape with a high dome polish enhances the stones dimensional brilliance, making it an eye-catching choice for statement jewelry.

Features & Benefits:
100% Natural Solid Crystal Opal Ethically sourced from Lightning Ridge, Australia
Stunning Play-of-Color Neon green, electric blue, and bold orange
Polished Oval Dome Cut Ideal for statement rings or pendants
Perfect Size 4.26ct, versatile for custom jewelry creations
October Birthstone A meaningful and timeless gift for loved ones

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.

Add to Wishlist

4.26ct Natural Crystal Opal Lightning Ridge

AU$910

In stock

Details

Dimension:

 12x11x5 mm

Weight:

 4.26 ct

Type:

 Natural Solid Untreated Crystal Opal

Source:

 Lightning Ridge, NSW, Australia

Sku:

 XX1486
Make an Enquiry

This 4.26ct Natural Lightning Ridge Crystal Opal is a stunning gemstone from Lightning Ridge, Australia. Ethically sourced and 100% solid, this opal exhibits vibrant flashes of neon green, electric blue, and deep orange against a translucent base. The oval shape with a high dome polish enhances the stones dimensional brilliance, making it an eye-catching choice for statement jewelry.

Features & Benefits:
100% Natural Solid Crystal Opal Ethically sourced from Lightning Ridge, Australia
Stunning Play-of-Color Neon green, electric blue, and bold orange
Polished Oval Dome Cut Ideal for statement rings or pendants
Perfect Size 4.26ct, versatile for custom jewelry creations
October Birthstone A meaningful and timeless gift for loved ones

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.

You may also like

Related products

Add to Wishlist
Double sided crystal opal 2.35 ct oval cabochon on a black background showing bright green and rainbow fire.
Double sided crystal opal 2.35 ct on fingertips to show size with bright green fire and rainbow flashes.
Add to cart

2.35ct Natural Crystal Opal Lightning Ridge

AU$741
Add to Wishlist
Set of 8 calibrated teardrop crystal opals 5.59 ctw with bright rainbow color pattern on a black background.
Hand holding a card with 8 calibrated teardrop crystal opals 5.59 ctw to show size and rainbow fire.
Add to cart

8Pcs Crystal Opal Parcel 5.59ctw Calibrated 9x6mm

AU$690
Add to Wishlist
Dark crystal opal 4.67 ct on a black background showing another face angle with strong red green and blue fire.
Dark crystal opal 4.67 ct in fingers showing bright green yellow and red color patches under light.
Add to cart

4.67ct Natural Crystal Opal Lightning Ridge

AU$661
Add to Wishlist
Natural faceted crystal opal pair 2.36 ct two round faceted stones on a black background showing blue and yellow color play.
Natural faceted crystal opal pair 2.36 ct round stones on fingers showing warm honey tones with soft rainbow flashes.
Add to cart

2.36ct Natural Faceted Crystal Opal Pair – Round

AU$286

    Recently Viewed

      Reviews

      Sterling Silver Natural Australian Boulder Opal Ring US9
      Sterling Silver Natural Australian Boulder Opal Ring US9
      Jan 13, 2026
      This ring is stunning! The depth and sparkle are something I haven’t seen before!

      Ashley
      3.43ct Natural Coober Pedy White Opal Parcel 10 Pieces Australian Gemstone Jewelry Stone
      3.43ct Natural Coober Pedy White Opal Parcel 10 Pieces Australian Gemstone Jewelry Stone
      Dec 28, 2025
      They certainly look like Australian Opals and are exactly as described. My wife loves opals and I got her these for Christmas to make her own custom piece with.

      Charles
      Australian Boulder Opal: Teardrop Cabochon, 21.84ct Vivid Fire
      Australian Boulder Opal: Teardrop Cabochon, 21.84ct Vivid Fire
      Dec 26, 2025
      Absolutely love the piece, exactly as shown and just as beautiful. Surprisingly fast delivery from Australia to Canada - less than two weeks.

      Stefan Delblanc
      Opal October Birthstone 6.61ct Solid Australian Boulder Opal Blue Green Pink Fire Natural Gemstone Jewelry Stone
      Opal October Birthstone 6.61ct Solid Australian Boulder Opal Blue Green Pink Fire Natural Gemstone Jewelry Stone
      Dec 18 2025
      Beautifully packaged for delivery, and a lovely finish on a gorgeous stone. Very unusual pink and mint green/aqua pastel colours. Quite unique for opal, which is already always one of a kind. I love it! My only advice to other buyers buying opals on Etsy is to always read the item description haha. I’d planned this one to be the centrepiece for a bracelet or wrist cuff, but because I was so enamoured with the stones colours and patterns I didn’t even check the actual size and dimensions of it. Make no mistake, the seller had wonderful photos and a clear and accurate description of the stone. The mistake was all mine! It was just a lot smaller than I had imagined in my head, purely because I didn’t measure properly for my ideas - so it will now be a divine ring instead 😍 Would 100% buy from this seller again!

      Louise
      1.05 ct Natural Australian Transparent Crystal Opal Polished Stone
      1.05 ct Natural Australian Transparent Crystal Opal Polished Stone
      Dec 13 2025
      Absolutely beautiful!! I ordered an Opal from a different company and it didn’t look anything like the picture. This Opal from Galaxy was perfect!! Highly recommend!!

      Christy
      0.40ct Natural Lightning Ridge Crystal Opal Polished Gemstone
      0.40ct Natural Lightning Ridge Crystal Opal Polished Gemstone
      Dec 7 2025
      Beautiful opal just as described and as it was in the photo

      cookiemonster909
      Australian Black Opal: 12.53ct Lightning Ridge Blue Green Fire Gemstone
      Australian Black Opal: 12.53ct Lightning Ridge Blue Green Fire Gemstone
      Nov 14 2025
      Nice stone black opal buying since 2023 trusted seller

      raj
      Large Sparkling Rainbow Multi Color Hand Carved Boulder Opal 62.6 ct
      Large Sparkling Rainbow Multi Color Hand Carved Boulder Opal 62.6 ct
      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
      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
      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
      Black Opal 1.1 ct, Rare Pattern Multi Color Fire Opal
      Black Opal 1.1 ct, Rare Pattern Multi Color Fire Opal
      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
      Dark Opal 1.2 ct, Red Teardrop Opal 11x9x2 mm
      Dark Opal 1.2 ct, Red Teardrop Opal 11x9x2 mm
      Oct 12, 2024
      Thank you very much!! Incredibly beautiful opal, fast shipping, nicely packaged too.

      Caitlin
      Rainbow Fire Dark Opal 2.8ct 14 x 9mm
      Rainbow Fire Dark Opal 2.8ct 14 x 9mm
      Jun 18, 2024
      Beautiful stone, lots of fire and flash! Gonna make a breathtaking ring!

      Deborah
      Harlequin Black Opal 0.92 ct
      Harlequin Black Opal 0.92 ct
      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
      Multi Color Black Opal 0.87 ct
      Multi Color Black Opal 0.87 ct
      Oct 20, 2023
      Arrived fast and in perfect condition! Incredible quality! Thanks so very much!

      Brett
      Black Opal 9.04 ct
      Black Opal 9.04 ct
      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
      Neon Orange Green Flash Dark Opal 2.15 ct
      Neon Orange Green Flash Dark Opal 2.15 ct
      Jun 15, 2023
      As presented and described very bright and colourful - excellent service - thank you.

      Lynton
      Harlequin Pattern Gem Black Opal 2.81ct
      Harlequin Pattern Gem Black Opal 2.81ct
      Apr 7, 2023
      An amazing opal. Thank you very much

      Brent
      Rainbow Fire Oval Dark Opal Stone 1.46ct
      Rainbow Fire Oval Dark Opal Stone 1.46ct
      Apr 7, 2023
      Beautiful high quality opal quick delivery from the other side of the world. Will definitely be back for more.

      Jaye
      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
      Gem Rainbow Fire Dark opal 11.38ct
      Gem Rainbow Fire Dark opal 11.38ct
      Feb 19, 2023
      A lovely opal. Thank you.

      brent
      Gem Rainbow Fire Dark opal 7.53 ct
      Gem Rainbow Fire Dark opal 7.53 ct
      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.
      2 Pcs Calibrated Crystal Opal Parcel 0.82 ctw
      2 Pcs Calibrated Crystal Opal Parcel 0.82 ctw
      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
      Faceted Crystal Opal 1.34 ct
      Faceted Crystal Opal 1.34 ct
      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.

      Neon Bright Rolling Flash Crystal Opal 1.7 ct
      Neon Bright Rolling Flash Crystal Opal 1.7 ct
      Jan 1, 2021
      Love my opal, its colours are bright even in dim light, fantastic!!

      Irene
      Crystal Boulder Opal 0.52 ct
      Crystal Boulder Opal 0.52 ct
      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
      Top Gem Neon Green Crystal Boulder Opal 2.1 ct
      Top Gem Neon Green Crystal Boulder Opal 2.1 ct
      Apr 11, 2023
      Superior flashiness in this opal…so lovely!

      Sandy
      Multi Color Fire Teardrop Double Sided Crystal Boulder Opal 2.1 ct
      Multi Color Fire Teardrop Double Sided Crystal Boulder Opal 2.1 ct
      Mar 28, 2023
      This opal is exceptional and matched the description and video beautifully. I got exceptional customer service as well.

      Beverly S.
      Multi Color Fire Teardrop Crystal Boulder Opal 1.86 ct
      Multi Color Fire Teardrop Crystal Boulder Opal 1.86 ct
      Aug 24, 2022
      Heat to heat. I love to make the colors of this opal dance in the sunlight. It's beautiful!!!!

      Cornelia
      Color Australian White Opal 1.9 ct
      Color Australian White Opal 1.9 ct
      Mar 19, 2022
      Very pretty play of color. Love it!

      Quiao