Australian Lightning Ridge Dark Opal 5.9 ct
Multi Color Triangle Dark Opal 5.9 ct
Multi Color Triangle Dark Opal 5.9 ct
Multi Color Triangle Dark Opal 5.9 ct
Multi Color Triangle Dark Opal 5.9 ct
MM00 Side
MM00 Back
Multi Color Triangle Dark Opal 5.9 ct
Multi Color Triangle Dark Opal 5.9 ct
Multi Color Triangle Dark Opal 5.9 ct

Dark Opal Lightning Ridge

This 5.9ct Natural Dark Opal from Lightning Ridge, Australia features bold splashes of green and violet fire dancing across its smooth teardrop surface. With a semi-black body tone and mesmerizing glow under light, this stone offers earthy elegance and powerful visual impact—perfect for custom jewelry or as a standout in any collection.

Features & Benefits:

100% Natural Dark Opal – Ethically sourced from Lightning Ridge, NSW, Australia

Green & Violet Fire – Striking flashes shift beautifully under changing light

Teardrop Shape – Naturally elegant and ideal for statement pendants

Perfect for Custom Jewelry – A substantial size with balanced dimensions

October Birthstone – A meaningful and timeless gift option

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

5.9ct Natural Dark Opal Lightning Ridge

AU$716

In stock

Details

Dimension:

 17x11x4.3 mm

Weight:

 5.9ct

Type:

 Natural Solid Untreated Dark Opal

Source:

 Lightning Ridge, NSW, Australia

Sku:

 MM00
Make an Enquiry

Dark Opal Lightning Ridge

This 5.9ct Natural Dark Opal from Lightning Ridge, Australia features bold splashes of green and violet fire dancing across its smooth teardrop surface. With a semi-black body tone and mesmerizing glow under light, this stone offers earthy elegance and powerful visual impact—perfect for custom jewelry or as a standout in any collection.

Features & Benefits:

100% Natural Dark Opal – Ethically sourced from Lightning Ridge, NSW, Australia

Green & Violet Fire – Striking flashes shift beautifully under changing light

Teardrop Shape – Naturally elegant and ideal for statement pendants

Perfect for Custom Jewelry – A substantial size with balanced dimensions

October Birthstone – A meaningful and timeless gift option

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

    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