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127 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

Select your opal to see more stone 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

AOG1 - 3.25 ct - Measures 15.3 x 9.6 x 4.1 mm
hidden treasures in shallow waters, this irregular opal is a secluded hideaway that's serene and sweet, bind it close with a romantic rose gold band, and a satellite diamond accent to remind you of your secret coordinates.

AOG3 - 1.65 ct - Measures 12.8 x 8.5 x 2.3 mm
like a lucky coin, rubbed with so many hopes and dreams, this egg-shaped opal is a wistful wisher of better futures.

AOG2 - 2.60 ct - Measures 10.5 x 8.7 x 4.4 mm
a solar eclipse drenched in blue hues. This is your once in a lifetime opportunity to capture the magic of the universe. Pair it with a white gold band for that extra twinkle.

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.

AOG5 - 1.48 ct - Measures 10.3 x 6.1 x 3.8 mm
a work in progress masterpiece of watercolors from a master painter, hinting at shapes for you to capture. Add a ruby for a captivated audience to encourage it to speak its stories.

AOG6 - 1.40 ct - Measures 11.8 x 5 x 3.6 mm
a bubble in the process of floating up to claim airspace, this opalescent darling embraces fluidity and the ever-changing nature of the world. Pair it with a white gold band for a dreamy ring.

AOG7 - 1.20 ct - Measures 11 x 7.5 x 2.3 mm
a perfect Ghibli sky, a heart full with welling emotions. Bind it with a dreamy rose gold band and rubies as its rambunctious sidekicks. A perfect opal for a lover of stories.

AOG8 - 1.69 ct - Measures 11.8 x 7 x 3 mm
a play of lights, a melodious welding of colors that sing to your heart, this opal would shine with an accompanying diamond to its side.

AOG9 - 1.05 ct - Measures 10.5 x 7 x 2.4 mm
look closely, can you see the chatterbox mid-laugh? An opal with a sense of humor and wild tales of adventures aplenty. Encourage its penchant for fun with a yellow gold band.

AOG10 - 0.99 ct - Measures 10.5 x 7 x 2.2 mm
a neon painting of mountains wild and breathtakingly beautiful. An opal which delights in an unrestrained play of colors, perfect for an artistic soul.

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.

AOG12 - 0.91 ct - Measures 8.3 x 8.3 x 2.5 mm
a perfect milky disc with music from your favorite moments and treasured memories that you hold dear. A white gold band and a sweet ruby addition to the band would make for a stunning ring.

AOG13 - 0.90 ct - Measures 9 x 6.1 x 2.4 mm
Nyx herself would ache for the beauty of this opal's tribute to the night sky. Bind it with a white gold band to highlight its smattering of stars.

AOG14 - 0.80 ct - Measures 11 x 6.2 x 2 mm
a symphony under the night sky set alight with soft hues of pink and blue, bring out its warmer tones with a ruby sidekick and a rose gold band.

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.

AOG16 - 0.79 ct - Measures 8 x 7.6 x 2.5 mm
a spherical opal that shines and shimmers with subtle colors of green and blue, a miracle of nature that wants you to take it home.

AOG17 - 0.74 ct - Measures 8.2 x 4.8 x 2.7 mm
a well-worn guitar pick shaped natural black opal that is bathed in a broadflash of blue, grey, and red. A musical soul is needed to be its perfect companion.

AOG18 - 0.70 ct - Measures 7.9 x 5.3 x 2.2 mm
A mad splatter of colors to remind you that the world can stop your heart in the best of ways if only you would allow it. Pair it with a white gold band to help this opal shine bright.

AOG19 - 0.70 ct - Measures 10.2 x 7.2 x 1.7 mm
a moment captured from the eyes of a spaceman in awe, this opal is rich with the colors that make mother earth a stunner seen from space. Pair it with a diamond satellite for that extra twinkle.

AOG20 - 0.58 ct - Measures 6.6 x 6.6 x 2.4 mm
a playful combination of colors on a palette, ready for you to dip your brush and tell your stories. This opal is lovely and sweet. Add a ruby in the band for an extra splash of passion.

AOG21 - 0.43 ct - Measures 7.1 x 6 x 2 mm
shallow waters reveal a glimpse of a gorgeous seascape in this opal that shines with tropical shades of blue and green. Accompany it with a diamond to the side and swim away with it to explore the stunning seafloor.

AOG22 - 0.20 ct - Measures 4.6 x 4.5 x 1.5 mm
a sweet sliver of a warm winter night, tucked in thick blankets and a mug of hot chocolate comfortingly near. Give it the warm glow it needs with a yellow gold band and a ruby companion.

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.

AOG24 - 0.23 ct - Measures 5.3 x 4.1 x 1.6 mm
a lovely shade of blue with freckles of color, like looking deep into the eyes of a lover and getting lost in its beauty. Pair it with a satellite diamond to add a sparkle to this eye.

AOG25 - 0.18 ct - Measures 4 x 4 x 1.6 mm
a disc of colors that swoop and swirl, like closing your eyes and delving deep into a new album from your favorite artist. Mount it on a white gold band to bring about a retro look.

AOG26 - 0.31 ct - Measures 5.4 x 3.8 x 2.3 mm
like molten lava, this is an opal that burns slow. Heat that simmers and sears, bring all of its warmth with a rose gold band a ruby companion.

AOG27 - 0.58 ct - Measures 6.1x 6.1 x 2.6 mm
an opal bathed in moonlight on the highest tops of mountains, free in ways we all wish we could be. Pair it with a yellow gold band and a diamond on its side.

AOG28 - 0.39 ct - Measures 8.2 x 5.1 x 1.4 mm
passionate bursts of anger transformed into art, this opal is that vehement swoosh of spray paint on a canvas, negativity turned into positivity.

AOG29 - 0.70 ct - Measures 9.8 x 6.2 x 1.8 mm
a dragon's wing slowly unfurled, majestic, magical, and magnificent. Frame it with a strong white gold band, and let yourself fly free with this ring.

AOG30 - 1.35 ct - Measures 11.7 x 7.1 x 2.8 mm
a token from the sea Goddess, a whisper of her secrets to precious, precious contentment, the kind that lasts a lifetime.

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.

AOG33 - 0.37 ct - Measures 7.9 x 5.0 x 1.3 mm
like a magical scape straight from the gorgeous mind of Tolkien, this opal aches with old magic not from this earth. Pair it with the mischievous twinkle from a diamond satellite for your own piece of fantasy.

AOG34 - 0.31 ct - Measures 8.2 x 3.9 x 1.7 mm
a unicorn tears and whispers from fairies, this pear-shaped opal is innocence in its purest form. Pearlescent and captivating. Pair it with a white gold band for a sweet ring that's soft in all the right ways.

AOG35 - 0.48 ct - Measures 10.4 x 5.8 x 1.3 mm
an alien jungle where space Tarzan is ready to swing through, this opal is fearless and fun. Explore the world with glee with this bestie by your side. Pair it with a ruby satellite for some truly exciting adventures.

AOG36 - 0.71 ct - Measures 13.3 x 4.3 x 1.9 mm
glacial glory that goes deep and towers on high, this opal is regal and elegant. Pair it with a yellow gold band to add warmth to its cool nature.

AOG37 - 0.10 ct - Measures 3.2 x 3.1 x 1.5 mm
a glimpse of the moon at its most perfect spherical shape, this opal is perfect for astronomers who love to cast their sights to the stars. Cast it in a tight bezel setting and a white gold band.

AOG38 - 0.16 ct - Measures 4.6 x 4.0 x 1.3 mm
a captured aurora to remind you that nature still gives the best shows. A perfect shard to remember the beauty that surrounds us, and the need to preserve it.

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.

AOG40 - 0.22 ct - Measures 6.2 x 3.4 x 1.6 mm
a fairy sanctuary that's alive with magic, the opal swirls with the blues and green of a magic dust. The secret sprinkle of joy that makes plants grow.

AOG41 - 0.40 ct - Measures 6.4 x 3.6 x 2.6 mm
a perfect guitar pick shaped opal, that whispers of molten lava, dangerously beautiful and stunning. Pair it with a yellow gold band and a ruby satellite for a gorgeous explosion of color.

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.

AOG44 - 0.26 ct - Measures 4.4 x 4.4 x 2.1 mm
A vibrant pop of blue etched with hypnotic swirls of green. This round opal is like a glowing ball of energy.

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.

AOG46 - 0.28 ct - Measures 5.7 x 4.9 x 1.7 mm
This glowing orange opal burns with striking sunset colors and vibrant flickers of fire. Gazing inside you can find shimmering golden glitter, green starlight and even some blue specks.

AOG47 - 0.31 ct - Measures 6.3 x 3.6 x 2.4 mm,

AOG48 - 0.33 ct - Measures 6.9 x 3.4 x 2.2 mm
Deep shades of navy and midnight blue are trapped inside this dark and mystical opal. Like a hallucination, you'll glue your eyeballs on it in a perpetual gaze.

AOG49 - 0.36 ct - Measures 6.7 x 4.2 x 1.6 mm
Aqua blue, opalescent glow, playful greens and smudged with clouds on one side. Who can resist that funky shape?

AOG50 - 0.27 ct - Measures 7.6 x 4.7 x 1.3 mm,

AOG52 - 0.60 ct - Measures 8.5 x 7.1 x 1.5 mm
The colors really remind me of the ocean from far above. Every angle of this almost round opal will show you different colors and layers of deep and luscious blue.

AOG53 - 0.39 ct - Measures 9.5 x 4.2 x 1.4 mm,

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.

AOG55 - 0.51 ct - Measures 10.6 x 6.3 x 1.2 mm
Sea glitter is captured like a confetti party in this blue and green teardrop opal. From tip to toe, this opal shimmers with ocean colors, sheer magic and endless shades in between.

AOG56 - 1.08 ct - Measures 11.1 x 7.8 x 1.6 mm
A vivid rainbow galaxy of colors, pops of blue and fluorescent green mingling, flecked with purple swirls and earthy marks.

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.

AOG58 - 1.92 ct - Measures 10.8 x 6.7 x 4.4 mm

AOG59 - 0.82 ct milky white floral opal 

Milky white opal with floral pattern. Predominantly red color. From Lightning Ridge, Australia. Measures 9.3 x 5.8 x 2.4 mm. 

AOG60 - 1.07 ct broadflash pinfire opal 

Milky opal with gray base, and multicolor broadflash and pinfire patterns. From Lightning Ridge, Australia. Measures 10.7 x 6.7 x 2.2 mm. 

AOG61 - 0.44 ct broadflash opal 

Natural light opal with N7 body tone and 4.5/5 brightness. From Lightning Ridge, Australia. Measures 8.53 x 4.27 x 2.04 mm.  

AOG62 - 0.78 ct black opal

Natural black opal with N3 body tone and 3.5/5 brightness. Multicolor broad flash pattern. Freeform shape with many natural cavities at the back. From Lightning Ridge, Australia. Measures 10.94 x 5.38 x 2.59 mm.  

AOG63 - 0.85 ct semi-black triangle opal

Natural semi-black opal in a triangle shape.N4 body tone and 2/5 brightness. Broad flash pattern, mostly blue and green colors for a beautiful ocean theme. Freeform shape with some natural cavities at the back. Mined in Lightning Ridge, Australia. Measures 8.3 x 7.37 x 2.43 mm. 

AOG64 - 1.14 ct broad flash pinfire opal

Natural semi-black opal with N5 body tone and 3/5 brightness. Broad flash pinfire pattern. Fresh colors, mostly blue and green. From the Lightning Ridge mining fields in Australia. Measures 7.92 x 6.53 x 3.49 mm. 

AOG65 - 1.40 ct floral pinfire opal

Natural semi black opal with N6 body tone and 3.5/5 brightness. Floral pinfire pattern in blue and green. Freeform oval shape.From the Lightning Ridge mining fields in Australia. Measures 12.94 x 5.61 x 2.77 mm. 

AOG66 - 1.72 ct black panda opal

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. Measures 10.36 x 7.88 x 3.18 mm. 

AOG67 - 2.07 ct pinfire black opal

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. Measures 16.84 x 7.82 x 2.72 mm. 

Customer Reviews

Based on 127 reviews
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.

Victoria R. (England, United Kingdom)
Love love love

It was so exciting to receive my birthstone ring. Im am so pleased with it and the happiness it brings me when wearing it , also knowing the stones represent the people i love and the connection we have past and present. Xx

Sofia (California, United States)
Tiny birthstones... did NOT match the photo example or mockup

The ring I received was definitely more of a STACKER... not a ring like the one pictured in the Double Birthstone Ring example photo. The stones I received are extremely tiny, about the size of the band. If I knew I'd be spending this much and waiting this long for a tiny stacker ring I wouldn't have ordered it. I was expecting something similar in size to the image on the website, the stones are much bigger.

I am disappointed because I ordered this for the birth of my daughter, who is due in one week. I received it just in time after waiting 2 months for it. When I opened the box I was so underwhelmed, I wish I hadn't been anticipating something completely different this entire time. Even the stones in the mockup they sent were a lot bigger. I can't emphasize just how small the two birth stones are.

The design was right and the customer service was very friendly but the size of the stones is so unacceptable. Disappointed...

Hi Sofia,

Thank you for your honest review. I’m so sorry to hear the gemstones were smaller than you expected.

Did you find the birthstone size chart on the product page? There you can find the size of each birthstone in mm. We also sent you a photo of the ring being worn before shipping it to you. We take these photos so our clients can see the actual size of the stones on a finger. Did you find this portrayed the size of the stones better than the mockup? Is there something we could have done to give you a more accurate idea of the size of the stones?

Please know that we're taking your feedback seriously. This helps us to improve.

The mockup was taken up close and prepared on paper instead of a real ring. I'm going to get the team together and see if it would make sense for us to put the stones on a real ring and provide both up-close and full finger photos for future mockups.

I understand your frustration as this is such a special ring for you. Did you receive my email with my offer? I hope we can make this right for you, Sofia!

Thank you for taking the time to share what we can do better.

With love,