News & Press: Jewelry and Industry

The Mysteries of Moissanite

Thursday, July 27, 2017  
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Moissanite in a variety of cutsWhat exactly is Moissanite? Is it a lab-grown or synthetic diamond substitute? Not at all.

Moissanite is the name given to a naturally occurring and lab-grown mineral made up of silicon carbide. Its occurrence in nature is extremely rare and has only been found in upper mantle rock and meteorites. Discoveries have shown Moissanite occurs naturally as inclusions in diamonds, xenoliths, kimberlite, and lamproite.

Today—because of its rarity—Moissanite is lab grown with minimal environmental impact. Because of its durability, Moissanite can be found in a variety of cuts, which give jewelry designers a plethora of options for settings.

Moissanite was discovered over 120 years ago by Nobel Prize-winning French chemist, Dr. Henri Moissan. He was looking for crystalline chemical compositions ideal for efficient electrical conductivity. During the search, Dr. Moissan discovered silicon carbide—a remarkable and extremely rare mineral— in a meteorite crater in Arizona. It was then named "Moissanite" in his honor.

Dr. Moissan spent the remainder of his life trying to recreate his extraordinary finding but never succeeded.

In the late 1990s, researchers from the Research Triangle Park in North Carolina developed and patented a process for creating pure silicon carbide (SiC). This was used in the development of diverse products that included semiconductors, LED lighting and extremely hard drilling tools and abrasives.

It was then that the vision and innovation of Charles & Colvard—the original creator of Moissanite—came to fruition. The process of producing Moissanite is lengthy, taking two to three months to create a single gem. Here are some beautiful designs from Charles & Colvard featuring their signature stones. Click on each to see a larger image.

Charles & Colvard ring Charles & Colvard pendant Charles & Colvard studs


If you are in the market for Moissanite, here are two attributes to note:

Brilliance: Moissanite’s faceting pattern allows it to emanate light in every direction, especially in sunlight!

Variety: Because of its durability, Moissanite lends itself to a wide variety of cuts and fancy shapes.

Like all gemstones and jewelry, it’s best to see Moissanite in person! Contact an AGS-certified jeweler near you and they’ll be happy to answer all your questions about remarkable Moissanite.



Mission Statement

The American Gem Society (AGS) is a nonprofit trade association of fine jewelry professionals dedicated to setting, maintaining and promoting the highest standards of ethical conduct and professional behavior through education, accreditation, recertification of its membership, gemological standards, and gemological research.

The Society is committed to providing educational products to inform and protect the consumer and to contributing to the betterment of the trade by creating industry standards to protect the jewelry-buying public and the fine jewelry industry as a whole.

AGS Laboratories, founded to support the AGS mission, is a nonprofit diamond grading laboratory with a mission of consumer protection. Adhering to the AGS Diamond Grading Standards, AGS Laboratories is dedicated to offering diamond grading reports that provide consistency and accuracy based on science.

American Gem Society