Determining the authenticity of a moissanite gemstone is crucial, especially considering the value and prestige associated with owning such a precious stone. The real moissanite is renowned for its unmatched brilliance and hardness, attributes that make it an attractive alternative to diamonds.

However, the emergence of fake moissanite gemstones in the market has raised concerns among buyers. These imitations, though visually similar to real moissanite, do not possess the same quality and durability.

Understanding the features and tests that can ascertain the authenticity of moissanite is therefore essential. This knowledge not only guarantees value for your money but also saves you from potential disappointments associated with acquiring counterfeit gemstones.

Common Signs of Imitation Moissanite: How to Spot a Fake


Understanding how to differentiate between real and imitation moissanite can save you from making a costly mistake. Unfortunately, unscrupulous sellers are out there, passing off cheaper stones as genuine moissanite. Here are some tell-tale signs to watch out for:

Exceptional Brilliance and Fire

Firstly, real moissanite is known for its incredible brilliance and fire – the way it reflects and splits light. Due to its high refractive index, it outshines most other gemstones. If your stone doesn’t display this level of sparkle, you might want to question its authenticity.

Double Refraction

Another unique attribute of moissanite is its double refraction. When you look closely at the stone, you should see two rays of light bouncing within the gem instead of the usual one. This phenomenon, although subtle, is a clear indication of real moissanite.

Hardness and Durability

Moissanite is one of the hardest known gemstones, second only to diamond. Its toughness makes it resistant to scratching or breaking. If your stone appears to scratch easily or has chipped edges, it could be a sign it’s not genuine moissanite.

The Heat 

Authentic moissanite can withstand high temperatures without changing color or becoming damaged. If you expose a fake moissanite stone to high heat and it discolors or cracks, it is clearly not genuine.

The Electrical Conductivity Test

Moissanite has a unique property of being electrically conductive, a characteristic that most gemstones do not possess. Specialized testers can identify this property, effectively differentiating moissanite from other gemstones.

Color and Clarity

Genuine moissanite possesses a certain brilliance that is unparalleled. It has a high refractive index which results in a rainbow-like sparkle. If the stone in question lacks this kind of intense sparkle, beware. 

Imitation moissanites are also often too clear. Real moissanite has some inclusions, just like diamonds. A flawless stone is a red flag.

Weight and Size

Moissanite is lighter than diamond. If the stone feels heavier than you’d expect, it might be a fake. Also, if the stone appears larger than the carat size on its documentation, it could be a sign of a cheap imitation.

Price Too Good to Be True

Moissanite isn’t cheap, but it’s more affordable than diamonds. If the price seems too good to be true, it probably is.

Lack of Certification

Reputable sellers will provide a certificate of authenticity with their moissanite stones. If the seller fails to provide this, or the certificate seems suspicious, you should question the authenticity of the stone.


Verifying the authenticity of your moissanite is crucial to ensure its value and longevity. It’s always best to seek assistance from a certified gemologist or use a reputable testing tool specifically designed for moissanite.
The brilliance, fire, and hardness of real moissanite are distinct, making it a unique gemstone. Understanding these characteristics can help you confidently identify and verify a genuine moissanite gemstone.

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