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Moissanite Sienna Lab Diamond Ring (3/8 ct. tw.) Set with 7mm Super Premium Colorless Round Moissanite

This glamorous ring secures the center gem with elegant claw prongs and features French pavé diamonds, a setting style that allows light to reach the diamonds from multiple angles and enhances their sparkle. ... Read More

Metal: 18K White Gold


Size Guide

Order now for delivery by Tue, Oct 18

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Baltimore Coming Soon: Pre-book Your Appointment

1429 Aliceanna Street, Suite 200
Baltimore, MD 21231


Fri-Tues: 10am-7pm

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Ring Information

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

Accent Gemstones

Lab created diamond
Min. carat total weight Min. carat total weight:
French pavé
Average ColorAverage Color:
Average ClarityAverage Clarity:

Center Gemstone

Average DimensionsAverage Dimensions:
7.0 x 7.0 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.
January 10, 2022
Kevin's fiance
Exactly what we imagined!

When my fiance and I started to talk about looking at rings I made sure Brilliant Earth was on the list. I was glad we had a showroom near and were connected with a great rep. My fiance ended up proposing with this beautiful ring! The quality of the ring is fantastic, and the sparkle in the diamonds are "brilliant"! I was floored with the how beautiful it was, he did an amazing job. I'm over the moon happy and very proud to wear this ring. ...Read More

November 15, 2021
Couldn't ask for a better ring or experience

This ring is gorgeous! The design is beautiful and the main and side stones sparkle/shine like crazy. My boyfriend and I looked through several settings and customization options and picked it out together. The ring styles here are better than what other websites have to offer and I'm happy we found the perfect engagement ring without having to compromise or go through a local jeweler. It fits perfectly and the stones don't feel like they are going anywhere, which was my biggest concern. Very happy with the overall quality of the ring. ...Read More

September 22, 2021

Love everything about the ring. Thickness of the band is perfect. Lab Diamond 2 carat, Setting 3/8 carat, Platinum. ...Read More

Order Details

*Estimated delivery if ordered by 2 PM PT tomorrow

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