How is moissanite made?

MOISSANITE 101

4 October 2025

Moissanite has been making waves in the jewelry world as a stunning, affordable and sustainable alternative to diamonds. But what exactly is Moissanite, and how is it made? Originally discovered in meteorites, this gemstone has evolved from its cosmic origins to become a lab-created marvel. In this article, we’ll take you through the fascinating process of how Moissanite is made and why it’s becoming the gemstone of choice for many.

The Origins of Natural Moissanite: A Cosmic Gem

Natural Moissanite was first discovered by French chemist Henri Moissan in 1893 while examining rock samples from a meteor crater in Arizona. At first, he thought he had found diamonds, but it turned out to be a different mineral: Silicon Carbide (SiC). This discovery set the stage for the creation of lab-grown Moissanite.

Though Moissanite occurs naturally, it’s extremely rare in nature, making it impractical for jewelry use. The natural form of Moissanite is usually found in tiny quantities, often in meteorites or other extreme environments. Because of its scarcity, almost all Moissanite used in jewelry is lab-grown.

Lab-Created Moissanite: From Discovery to Jewelry Showcases

To meet demand, scientists developed ways to create Moissanite in a lab, giving birth to a new era for this gemstone. In the 1990s, the company Charles & Colvard patented a method for growing Moissanite crystals, making it available for commercial use.

By growing Moissanite in controlled environments, scientists can replicate the exact chemical structure of natural Moissanite. This lab-grown version offers consumers an ethical, eco-friendly, and affordable alternative to traditional diamonds, without compromising on beauty or brilliance.

The Science Behind Moissanite Production: Silicon Carbide Magic

So, how is Moissanite made? The key lies in Silicon Carbide (SiC), the compound that gives Moissanite its durability and brilliance. Here's a breakdown of the process:

Silicon Carbide Formation: Lab-grown Moissanite starts with Silicon and Carbon, which are combined under extreme heat (over 2000°C) in a controlled environment. The process typically involves the Chemical Vapor Deposition (CVD) technique, where these elements are vaporized and deposited layer by layer to grow large, single crystals of Moissanite.

Crystallization: The conditions must be carefully monitored—pressure, temperature, and the purity of the materials all affect the quality of the resulting Moissanite crystal. This process can take weeks as the crystal grows slowly to ensure uniformity and minimize imperfections.

Moissanite’s hardness ranks just below diamond, making it one of the toughest materials on earth. Its unique structure also gives it more “fire” (the dispersion of light into rainbow colors) than even diamonds.

Cutting and Polishing: Bringing Out Moissanite’s Brilliance

Once the Moissanite crystal is grown, the next step is to cut and polish it to maximize its brilliance. Skilled artisans shape the crystal into a variety of cuts—round, oval, cushion, and more—depending on consumer demand.

Precision is key when cutting Moissanite. Each facet needs to be placed perfectly to enhance the stone’s fire and sparkle. After cutting, the stone is polished to give it a high level of brilliance, ensuring that it reflects light beautifully from every angle.

Quality Control: Ensuring Perfect Moissanite Gems

After cutting and polishing, each Moissanite stone undergoes a rigorous quality control process. Grading is done based on the stone’s clarity, color, and brilliance. Unlike diamonds, Moissanite typically has fewer visible inclusions due to its lab-grown nature, making it a more flawless option in many cases.

Moissanite is graded on a similar scale to diamonds, and high-quality stones are often near colorless, offering an icy white appearance. The consistency in lab-grown Moissanite ensures that buyers get a near-perfect stone every time.

Environmental and Ethical Advantages: A Sustainable Choice

One of the biggest draws of Moissanite is its environmental and ethical advantages. Here’s why:

Eco-friendly: Lab-grown Moissanite eliminates the need for mining, which has a significant environmental impact. Unlike diamond mining, which can lead to deforestation, water pollution, and loss of biodiversity, Moissanite production is a low-impact process.

Conflict-free: Since Moissanite is created in a lab, there are no concerns about the stone’s origin being tied to conflict zones or unethical labor practices. This makes Moissanite a guilt-free, conflict-free gemstone choice for conscious consumers.

Moissanite passes the Diamond Test

Every Mariqe stone is hand-selected, graded to D-Excellent standards and tested

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Moissanite vs. Diamond: Why Moissanite is the Smart Choice

While diamonds have long been the traditional choice for engagement rings and fine jewelry, Moissanite is quickly becoming the gemstone of the future. Here’s why:

Brilliance: Moissanite’s brilliance and fire actually surpass diamonds. Its higher refractive index means it sparkles more.

Affordability: Moissanite is significantly more affordable than diamonds. You can get a larger, more brilliant Moissanite stone for a fraction of the price of a diamond.

Durability: With a hardness rating of 9.25 on the Mohs scale (compared to diamond’s 10), Moissanite is extremely durable and ideal for everyday wear.

Conclusion

Moissanite’s journey from its origins in meteorite craters to being created in labs is nothing short of remarkable. Thanks to modern technology, we can now enjoy this brilliant gemstone in a sustainable, affordable, and ethically responsible way. With its unmatched fire, durability, and affordability, Moissanite offers a sparkling alternative to diamonds without any compromises.

If you’re looking for a gemstone that shines brighter, costs less, and is better for the planet, Moissanite is the perfect choice.