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129 total reviews

Custom Australian Opal Ring in Gold

She’s like quicksand, baby. Earthy and gritty, and twisting with an unpredictable mood. If you gaze closely, you’ll see it – the eye of her storm, swirling with wildness but laced with brittle splinters.


  • 18 karat yellow, rose or white gold
  • Our signature ethical gold: mercury-free and mined by indigenous women who are paid more than the international gold price
  • Freeform Australian opal - October birthstone
  • A fully customized piece
  • Made to order in around 8 to 12 weeks, plus shipping

Choose your opal to see more photos:

Email us for help and personal concierge service

Custom Australian Opal Ring in Gold

Design your own opal engagement ring or self love ring.

Choose an Australian opal that speaks to you and let's get started! Each opal is a solid, natural opal and has been responsibly sourced from Australia.


Opal is the October birthstone. Flashes of color dancing in a glimmering stone, there’s not much that needs to be said about its beauty. This gemstone is as versatile as it is colorful – use it for playfulness and strength, tenderness and truth, to amplify your karma and keep your cool all at once.

Opal absorbs and reflects light as it dances, and likewise, it picks up thoughts and feelings, desires and buried emotions, amplifying them and returning them to the source. Opal helps you to let go of patterns of fear, anger, negativity and self-harm. If you need to let go of the one who doesn’t deserve you, have faith in Opal and this too shall pass.

With a hardness of 5.5 to 6.5 on the Mohs scale, opal is a softer gemstone. This means that opal can easily be scratched, even by dust particles. High heat and sudden temperature changes can cause opal to crack. Because opals are porous you should avoid contact with chemicals, cosmetics and household cleaners while wearing your opal. Don’t wear your opal jewelry during physical activity, like sports or gardening. The only safe way to clean opal is with warm, soapy water.

We’re making this for you, from scratch

Your custom shape gemstone ring will be made to order with the gemstone of your choice in around 8 to 12 weeks. You'll receive a photo before we ship it out. The price is for one finished ring in 18 karat eco gold.

Since your shape stone ring will be made especially for you, we don’t accept returns on custom orders. You can read our return policy here.

Your custom ring design


You can choose from 18 karat yellow gold, rose gold or white gold. We use 18 karat ethical gold, which is mined and processed with traditional, mercury free, low impact practices by indigenous Dayak women in Central Kalimantan, Indonesian Borneo, who receive fair pay. Our 18 karat white gold is alloyed with palladium. This white gold has a warm gray color. If you prefer that white metal look, we recommend adding rhodium plating for $50.

Ring size

We use US ring sizes.


    You can choose between a bezel setting, which has the gold all the way around the stone and a prong setting, where small claws hold the stone. Not sure which setting is right for you? Compare bezel vs prong setting here.

    Diamonds in band

    Want to add some extra sparkle? Pave diamonds in the ring band can really elevate the look of your ring. Choose between salt and pepper diamonds (the rebellious budget option) or white diamonds (G-H color, SI clarity).

    Engraving is on us

    We offer complimentary engraving on the inside of your ring to personalize it even more. Our team will reach out to you after your purchase for details.

    Conflict free diamonds

    The diamonds used in this jewelry have been purchased from legitimate sources not involved in funding conflict and in compliance with United Nations resolutions. Based on personal knowledge and/or written guarantees provided by the supplier of these diamonds they are conflict free and mined in accordance with the Kimberley Process.

    Gardens of the Sun goes beyond conflict free. Since our sourcing policy came into effect in November 2018 we only purchase diamonds from known origins. We avoid sourcing diamonds from Angola, Democratic Republic of Congo, Ivory Coast, Liberia, Russia (last purchased in 2019), Sierra Leone and Zimbabwe.

    Is it an engagement ring?

    Are you planning on using this as an engagement ring? Ask us to keep the exact measurements of your diamond. This way, if you decide to also get a wedding band or nesting band from us, we can help make sure it fits perfectly.

    Need any help?

    Want advice on which stone to choose, some guidance with the design or a mock-up before taking the plunge? Our customer happiness team is pretty awesome! Contact them for help.

    Any special requests for your ring band, stone angle or prong placement? Write them down in the box at checkout.


    Opals for you to choose from

    • AOG4 - 1.63 ct - Measures 19.5 x 6.1 x 2.1 mm. A cat-like opal, stretching out to relax and chill on a sunbeam, awashed in the perfect hues of the summer skies. Bind it with a yellow gold band that shines like the sun.
    • AOG11 - 1.0 ct - Measures 10.6 x 6.2 x 2.5 mm. A whisper of the song that stars twinkle for, this regal opal is old and wise, and achingly gorgeous. Bind it with a yellow gold band and give it a northern star with a satellite diamond. 
    • AOG15 - 0.82 ct - Measures 13.2 x 4.6 x 1.9 mm. Tumble down to the wild side with this milky opal that boasts a rebellious streak of grey to one side. Give it a chic rose gold band and partner it with a mischievous ruby.
    • AOG23 - 0.28 ct - Measures 6.1 x 4.4 x 1.7 mm. Swirling shades of blue and green with a wink of peach, this opal is a mesmerizing specimen. Pair with a rose gold band for a sweetheart companion.
    • AOG31 - 1.68 ct - Measures 16.7 x 7.1 x 2.8 mm. Space travel lives up to all its promises, this traveler can tell you. It's seen cosmic dust swirl, and slept in the absolute darkness of space.
    • AOG32 - 2.00 ct - Measures 28.4 x 6.9 x 1.9 mm. A whimsical wonder that sneaked away from a Final Fantasy chapter, wrap it tightly with a white gold band, and set a satellite stone of diamond to add to its magic.
    • AOG39 - 0.37 ct - Measures 5.1 x 4.7 x 2.2 mm. Nature flexing its creative muscles, giving you the chance to immerse in unreal shades of gold, green, and red. Sink it in a white gold band so you don't distract from the truly stunning show.
    • AOG42 - 0.46 ct - Measures 6.9 x 3.2 x 2.8 mm. An insectologist's dream. Neon greens set against a dark background, lie the strong beat of a butterfly's wing. Perfection from every angle. Pair this opal with a rose gold band for a stunning show stopper ring.
    • AOG43 - 0.29 ct - Measures 8.1 x 2.8 x 1.7 mm. A glimpse of the earth from space, this ring is an observer that understands the earth deeply. Pair it with a diamond satellite for a flirting twinkle.
    • AOG45 - 0.18 ct - Measures 5.7 x 4.0 x 1.3 mm. A light gold body smudged with warm orange and scattered with the glimmer of Aurora green.
    • AOG54 - 0.23 ct - Measures 10.3 x 3.9 x 0.9 mm. An elongated oval opal that shows off a psychedelic swirling cormos of blue and green floating in the center, fading into a silky mist at the top.
    • AOG57 - 1.37 ct - Measures 10.1 x 7.6 x 2.9 mm. A thousand colors flash beneath the surface of this semi-black opal, boasting psychedelic flashes of purple, green and blue. A rebellious streak of black strikes through the middle.
    • AOG61 - 0.44 ct broadflash opal - Measures 8.53 x 4.27 x 2.04 mm. Natural light opal with N7 body tone and 4.5/5 brightness. From Lightning Ridge, Australia. 
    • AOG66 - 1.72 ct black panda opal - Measures 10.36 x 7.88 x 3.18 mm. Natural black opal with N3 body tone and 3.5/5 brightness. Interesting broad flash flagstone pattern in blue and green, with gray panda spots in between.Mined in Lightning Ridge, Australia. 
    • AOG67 - 2.07 ct pinfire black opal - Measures 16.84 x 7.82 x 2.72 mm. Natural semi black opal with N4 bodytone and 2.5/5 brightness. Predominantly red pinfire pattern and smoky swirls in between.Mined in Lightning Ridge, Australia.
    • AOG69 - 0.50 ct light opal - Measures 7 x 4.8 x 2.6 mm. Natural light opal with N8 bodytone. Multicolor broad flash opal with chalky inclusions on the side. Mined in Lightning Ridge, Australia.
    • AOG70 - 0.93 ct black opal - Measures 9.9 x 6.6x 2.2mm. Natural black opal with N2 bodytone. Green grass pattern on blue base. Mined in Lightning Ridge, Australia.
    • AOG71 - 0.68 ct confetti opal - Measures 10.4 x 5.8 x 2 mm. Medium body tone opal with blues, greens, yellows, reds, and purples. Like sparkling confetti scattered throughout. Mined in Lightning Ridge, Australia. 
    • AOG72 - 0.77 ct multicolor floral opal - Measures 7.93 x 5.49 x 3.06 mm. Natural light opal with a multicolor floral pattern. Reflects a particularly mesmerizing green shade in certain angles. Mined in Lightning Ridge, Australia.
    • AOG74 - 1.01 ct broadflash opal - Measures 10.1 x 6.0 x 2.7 mm. Midtone opal with blue, purple and green hues in a broadflash pattern. Mined in Lightning Ridge, Australia. 
    • AOG75 - 0.42 ct crystal opal - Measures 8.3 x 5.8 x 1.3 mm. Crystal opal of a predominantly green shade, with some blues and yellows. Mined in Lightning Ridge, Australia. 
    • AOG76 - 1.5 ct milky white opal - Measures 13.26 x 6.03 x 3.16 mm. Milky white opal with subtle green and purple reflections. Mined in Lightning Ridge, Australia. 
    • AOG77 - 1.45 ct multicolor black opal - Measures 12.2 x 5.7 x 3.2 mm. Natural black opal with N3 bodytone. Multicolor broadflash pattern, mostly blue-green. Mined in Lightning Ridge, Australia. 
    • AOG78 - 1.86 ct natural crystal opal- Measures 12.3 x 9.9 x 2.6 mm. Natural crystal opal with transparent bodytone. Gray base with broadflash blue green pattern. Mined in Lightning Ridge, Australia. 
    • AOG79 - 1.40 ct wing-shaped black opal. Wing-shaped black opal with a broadflash pattern in green and blue hues. Mined in Lightning Ridge, Australia. 
    • AOG80 - 1.75 ct multicolor light opal - Measures 13.9 x 8.1 x 2.4 mm. Natural light opal with N7 bodytone. Multicolor puzzle pattern with green flashes and a tiny surface pit. Mined in Lightning Ridge, Australia. 
    • AOG81 - 4.19 ct translucent opal - Measures 15.9 x 11.8 x 4.0 mm. Natural crystal opal with translucent bodytone. Multicolor broad flash opal. This magical opal has a clear bubble revealing some of the white pudge inside. Mined in Lightning Ridge, Australia.

    Customer Reviews

    Based on 129 reviews
    Praveena M. (North Carolina, United States)
    Stunning custom opal ring

    I had a fantastic experience working with Shenny, from picking out the perfect stone (she sent me additional pictures of the ones I was interested in), to creating a mockup so that I could see if yellow gold would look good with the stone, to keeping me updated every step of the way after that. When the ring was finished, she sent me final pictures, and I had a chance to request any last changes. The ring was shipped out promptly after that, and I received it in just a few days even though I am in the US! When I put it on, it fit perfectly. The opal sparkled with its hidden fire in a variety of different lights, and my breath was taken away. I will truly cherish wearing this ring. Thank you Shenny and Gardens if the Sun!!

    Justin g. (Lisbon, Portugal)
    Amazing personalized service for custom

    I chose Gardens of the Sun for my, now fiance's, engagement ring because of their ethical practices and unique desings. There were a few things I wasn't sure about on the custom page, so I reached out to them. From the very beginning, Maharani was quick to respond and very helpful in the highly personalized design process. I could tell she was eager to help me create the perfect ring and had absolute positive vibes the whole time. As for the ring, well it turned out to be perfect for us and my fiance can't stop looking at it! We will definitely be returning to Gardens when it comes to the wedding bands and I can't wait to see what they help us come up with next.

    Sophie R. (Pennsylvania, United States)
    Birthstone ring in silver

    My partner ordered my ring for my 30th birthday gift and it's beautiful! I chose my birthstone tourmaline, his as emerald, and then a moonstone to contrast with the greens. It's just like the photos and is even better in person. I also got a nesting silver ring to compliment it and it looks lovely with and without it. This is my second ring from you guys, as my partner got my engagement ring here last year. <3 Very happy with my purchase, and I love supporting Gardens of the Sun.

    Kerri H. (Connecticut, United States)
    Birthstone Ring in Sterling Silver

    So happy with my Birthstone ring! Combined sapphire with citrine for the two stones. Sapphire for the month of September and Citrine for the sign of Libra. Great communication throughout the process. And the ring was sized just right. This is my second purchase from Gardens of the Sun. I’m sure to be back again. Thank you.