Francis Claire is a premium provider of moissanite that we source from our cutting-edge, vetted labs. We exclusively offer loose gem moissanite which can be set into custom jewelry.

Francis Claire is a verified brand created by theFrancis Claire, an organization dedicated to educating and protecting buyers by verifying and recommending the most-trusted moissanite brands and their gems.

Our support team is available around the clock to assist you with your purchases and can be contacted through our support page. To start shopping our gems, click here.

Discovered in 1893 by Nobel Prize Winner Henri Moissan, moissanite is a rare and naturally-originating gemstone. Each gem is unique while being brighter and more lustrous than a diamond, all without the markups. Today, almost all moissanite is produced in scientific labaroties using cutting-edge processes to ensure the best cuts and grades of each gem. This means that your gem will be conflict-free and won't harm our planet through dirty mining and exploitation of resources.

Francis Claire set out to offer moissanite of the highest quality. During our product selection process, you can choose which grade of moissanite you'd like on the DEF (colorless) to GH (near-colorless) to IJ (slightly-colored) scale. 

Yes. The Francis Claire uses an independent company to inspect and verify our labs and gems using advanced gemology tools with electrical conductivity sensors that ensure the quality of our moissanite.

Due to small differences in the densities of diamond and moissanite, we utilize a Carat Total Weight Equivalent when presenting our gems. For example, a 1 carat round diamond is approximately 6.5mm in size. Thus, to help our shoppers make an appropriate comparison with diamonds, our "1 carat round moissanite gem" is the same size but may weigh less (usually 5-10% lower CTW). This is a standard practice in the jewelry industry and helps shoppers make accurate size comparisons between moissanite and diamonds.

When buying your loose gem moissanite, you will first select the desired shape of your gem. Once on that gem's page, you can select your desired Carat Total Weight (CTW) and grade. Once you have selected your stone(s), you then pair it with the perfect setting, be it a ring, pendant, earrings, etc. A jeweler then expertly crafts your showpiece and delivers the final product. 

This method grants you ultimate flexibility in your experience. Do you want to combine your moissanite with rubies or other gemstones? Very few chain jewelry stores will offer a design that you'll like. Buying loose gemstones means that you are limited only by your own creativity. You are in control of the cuts, colors, sizes, and more. Finding your perfect moissanite is only a few clicks away. Order now and receive your stone to craft your dream piece as unique as you.

It depends on where you are. Orders to the United States will generally take 2-5 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

Crafting luxurious, environmentally-friendly moissanite is at the core of our mission. Our founding organization, the Francis Claire, verifies our labs and gems using advanced gemology tools with electrical conductivity sensors that ensure that our gems are premium moissanite.

Each gemstone we sell is backed by the Francis Claire Lifetime Guarantee that offers free returns or exchanges for as long as we are in business for any defect from production (issues are incredibly rare), free returns or exchanges for up to 60 days if you are not 100% satisfied, and ensures that your gems are premium, conflict-free moissanite.

The Francis Claire is an organization dedicated to educating and protecting buyers by verifying and recommending the most-trusted moissanite brands and their gems. Francis Claire was created by theFrancis Claire to allow purchasers, from consumers to jewelers to brands, to purchase vetted, top-grade moissanite at competitive prices.