Aquamarine Demi Diamond Ring (1/3 ct. tw.) in Platinum
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Aquamarine Demi Diamond Ring (1/3 ct. tw.) Set with 8mm Fine Round Aquamarine

This elegant engagement ring features a glittering hidden halo of diamonds that wraps around the center gem. A petite band complements the gallery for an elegant, chic look (1/3 total carat weight). ... Read More

Metal: Platinum

AUD 4,095 (Taxes Not Included)

Order now and your order ships by Fri, Aug 9

Schedule a personalized, in-person visit to discover the perfect ethical origin fine jewelry piece for your milestone moments.

Ring Information

950 Platinum
Prong metal:
Average width:
1.4 mm

Accent Gemstones

Min. carat total weight Min. carat total weight:
Scalloped Pavé
Average ColorAverage Color:
Average ClarityAverage Clarity:

Center Gemstone

Dimensions Dimensions:
8.0 x 8.0 mm
Eye Clean

Luxury with a Conscience®

A ring that evokes the happiness of love and partnership is even more joyful when you know that it was sustainably sourced and mindfully produced. From our mission to our unique jewelry designs, everything at Brilliant Earth is held to exceptional standards.

Our engagement ring settings are made-to-order with each one handcrafted for your selected center gem’s unique characteristics to ensure the high quality of the finished piece.
We’re leading the jewelry industry towards clean energy. We use clean energy in our showrooms and offices, have displaced all other corporate emissions since 2018, and support wind and solar energy projects through collaborations that help address climate change.
Our packaging uses recycled materials made with less energy, less water, and fewer emissions. We make our iconic ring boxes with wood certified by the Forest Stewardship Council and design them to last lifetimes. Since 2021, we’ve used 100% recycled paper, saving hundreds of tons of CO2, and we’re shrinking our packaging even more to further reduce waste.
October 13, 2023
Jason Wu
Couldn't have asked for better.

Customizing was easy with all the specs I could browse through. Shipping was easy and speedy and pick-up even easier. Ring turned out amazing but was a tad bit too large. Customer service on phone was excellent and went through process to get it resized. Resize came out PERFECTLY and timely. Will recommend Brilliant Earth to finding an affordable yet beautiful ring (it's just carbon at the end of the day folks, just buy lab-grown :P). ...Read More

October 7, 2023
So Happy!

I love how easy it was to customize my ring online and the ring looks even better than I could have imagined in person. Customer service was also very helpful. ...Read More

August 28, 2023
Trevor's fiancée

I originally didn't want this ring, but my fiancé went to brilliant earth 3 times and every time fell in love with this ring, and I'm so happy he did. It is stunning and I'm obsessed! ...Read More

Order Details

*Estimated ship date if ordered by 2 PM PT today

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Easy monthly payments with Affirm. From 0% APR financing. Up to 36 months. Subject to credit approval.

Special 12 month financing options available with Wells Fargo, subject to credit approval.

Layaway options also available.

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Gemstone ring on wooden jewelry box.