What Is a Moissanite Stone?

A moissanite stone is a gemstone made of silicon carbide (SiC) (Read about moissanite stone composition), a compound of silicon and carbon. It was first discovered in 1893 by French chemist Henri Moissan inside a meteorite crater. The natural mineral is extremely rare, so almost all moissanite used in jewelry today is lab-created (Why moissanite is ethical and conflict-free, Is moissanite conflict-free?). Lab-created moissanite ensures consistent quality, ethical sourcing, and environmental friendliness.

The Composition of a Moissanite Stone

Moissanite’s chemical formula is SiC, meaning it consists of silicon and carbon atoms arranged in a crystal lattice. This unique structure gives moissanite:

• Exceptional brilliance – it has a higher refractive index than diamonds, creating intense sparkle (Why is moissanite so sparkly?)

• Durability – rated 9.25 on the Mohs hardness scale, suitable for everyday wear (Moissanite hardness explained)

• Thermal resistance – it withstands high temperatures, making it suitable for long-lasting jewelry

Unlike diamonds, which are pure carbon, moissanite’s silicon-carbide structure produces rainbow-like flashes of light, giving it a distinctive appearance that many jewelry lovers adore (Does moissanite lose sparkle?).

How Moissanite Compares to Diamonds

Many people wonder how moissanite differs from diamonds (Is moissanite a real diamond?):

Although moissanite is not a diamond, it is a popular diamond alternative for engagement rings and other jewelry due to its brilliance and affordability (High-quality moissanite guide).

Types and Colors of Moissanite

Moissanite stones come in various colors and cuts:

• Colorless Moissanite: Closest to a diamond in appearance

• Near-Colorless Moissanite: Slightly warmer tones for subtle character

• Fancy Moissanite: Rare colors like yellow, green, or pink for a unique look (Can moissanite turn yellow?)

These options allow jewelers and buyers to select stones that match their style and budget.

Caring for Your Moissanite Jewelry

To maintain the beauty of a moissanite stone:

• Clean regularly with warm soapy water and a soft brush (How to clean moissanite jewelry)

• Avoid harsh chemicals like bleach or chlorine

• Store separately to prevent scratches on other jewelry

With proper care, moissanite jewelry can last for decades while retaining its sparkle (Does moissanite get cloudy over time?).

Conclusion

So, what is a moissanite stone made of? It’s composed of silicon carbide, giving it incredible brilliance, durability, and unique rainbow flashes. While it’s not a diamond, moissanite is a beautiful, affordable, and ethical alternative, perfect for engagement rings, earrings, and fine jewelry (Learn more about moissanite).