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Shown With 9mm Round Moissanite

Moissanite Nadia Lab Diamond Ring Set with 8.5mm Super Premium Colorless Round Moissanite

This elegant ring features a dazzling cluster of round and marquise-shaped diamonds that rest upon the shoulders of the gently tapered band. The center gem is held by four claw prongs as it sits upon a slightly open gallery (1/10 total carat weight). ... Read More

Metal: 18K White Gold


Size Guide

Delivery by Christmas

Order now for delivery by Tue, Dec 21

Georgetown, Washington DC showroom entryway

Georgetown, Washington DC

3332 Cady's Alley NW
Washington, DC 20007


Daily: 10am–7pm

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Ring Information

18K White Gold
Prong metal:
18K White Gold
Average width:
1.8 mm
Rhodium finish:

Accent Gemstones

Lab created diamond
Min. carat total weight Min. carat total weight:
Prong Set
Average ColorAverage Color:
Average ClarityAverage Clarity:
Lab created diamond
Min. carat total weight Min. carat total weight:
Prong Set
Average ColorAverage Color:
Average ClarityAverage Clarity:

Center Gemstone

Average DimensionsAverage Dimensions:
8.5 x 8.5 mm
Average ColorAverage Color:
Average ClarityAverage Clarity:
Eye Clean
Lab Created

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.
As part of our commitment to protecting the planet, Brilliant Earth is Carbonfree®. We calculated our carbon footprint by assessing the direct emissions of our energy use, including packaging, shipping, and employee travel and commuting. Then we partnered with to offset our carbon emissions by contributing to Tropical Rainforest Conservation in Brazil. We will continue identifying ways to reduce our footprint and offsetting emissions that we cannot eliminate.
We present each Brilliant Earth design in a jewelry box crafted of wood from Forest Stewardship Council (FSC) certified forests—trees that are managed and harvested in a manner that protects and maintains natural communities and respects the rights of workers and indigenous people.
November 23, 2021
Happy Lady
Timeless & Classic

My experience with Brilliant Earth was incredible. After browsing every inch of their website, I wanted to view the rings in person so I could have no regrets on my purchase. I love that it was appointment based, and my consultant wasn't pushing things at me. It also helped that I had made up my mind that I was purchasing a ring that day, so it didn't feel so scary. I loved the Nadia setting in yellow gold online, and it did not disappoint in person. (Honestly, it looks even better in every day life than it did in the showroom). I originally wanted to pair it with an emerald gemstone, but last minute decided to switch to an emerald cut diamond instead. The only emerald diamond they had in the showroom was okay but nothing special... and I wanted that wow factor so my consultant worked with me to find something I loved and I think I only went $10 over my budget. The only slightly stressful part was that we picked out a diamond online, so I had no way of truly knowing how it would look until it was ready for pick up. Since I researched the 4C's I was still confident in my decisions. Well, my fiancee is OBSESSED with it. Literally, she can't stop looking at it and it really freaking sparkles. The Nadia setting compliments the Emerald perfectly, and it's truly a timeless, classic, and vintage looking ring. I picked a winner, and I'm so happy I went with Brilliant Earth. The final specs for reference in case anyone wants an emerald cut with this setting: 1 carat Lab Grown Emerald, Super Ideal Cut, VS2, D color. ...Read More

November 21, 2021
This ring is absolutely perfect

This ring is stunning and really took my breath away when I saw it! We went with an 8x6mm moissanite on a 14k rose gold band in a size 4. Since the Nadia is on the thinner side, I plan to solder my wedding band to it to strengthen it. The stone sparkles a ton and looks beautiful next to the diamond accents. I can't stop staring at the ring! The delivery was also very fast. ...Read More

November 18, 2021
Bright and sparkles

A very nice stone in a very nice setting. ...Read More

Order Details

*Estimated delivery time if ordered by 2 PM PT Monday

Free FedEx Shipping

Free 30 Day Returns

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 engagement ring in box