Moissanite vs. Diamond: What are the differences?

Moissanite vs. Diamond: What are the differences?

Diamonds and moissanite are not the same, despite their apparent similarities and shared qualities. Here are some important differences between the two gemstones.
Key distinctions between diamonds and moissanites


When it comes to choosing a gemstone for your jewelry, the decision between moissanite and diamond can be a tough one. Both are popular choices, but what are the key differences between the two?

Composition and Origin

Diamonds are made of carbon, while moissanite is made of silicon carbide. Diamonds are formed deep within the Earth's mantle under extreme pressure and heat, while moissanite is created in a lab setting. This difference in composition and origin affects their physical and optical properties.

Hardness and Durability

Diamonds are the hardest natural substance on Earth, scoring a perfect 10 on the Mohs scale of mineral hardness. Moissanite comes in close behind, scoring a 9.25. This means that while both are highly durable, diamonds are slightly more resistant to scratches and chips.

Brilliance and Sparkle

One of the key differences between moissanite and diamond is their brilliance. Moissanite has a higher refractive index than diamond, which means it has more fire and sparkle. Some people prefer the fiery brilliance of moissanite, while others prefer the more subtle sparkle of a diamond.


Cost is often a significant factor when choosing between moissanite and diamond. Moissanite is typically much more affordable than diamond, making it a popular choice for budget-conscious shoppers. However, diamonds are considered a traditional and timeless choice for engagement rings and other fine jewelry.

Ethical and Environmental Considerations

Another important factor to consider is the ethical and environmental impact of your gemstone choice. Diamonds are often associated with conflict and environmental concerns, while moissanite is considered a more ethical and eco-friendly alternative.

Ultimately, the choice between moissanite and diamond comes down to personal preference and priorities. Whether you value durability, brilliance, cost, or ethical considerations, both gemstones have their own unique qualities to offer.

Origin: Silicon carbide is a naturally occurring mineral that is used to generate the lab-created gemstone known as moissanite. Diamonds, on the other hand, are naturally occurring gemstones—naturally mined diamonds, not lab-created ones—that occur in abundance.
Cost: A Moissanite costs a lot less than a Diamond of the same size and grade.
Durability: With a Mohs hardness score of 10, diamonds are the hardest naturally occurring mineral and are well known for their durability. Moissanite, which rates between 9.25 and 9.5 on the same scale, is likewise incredibly durable.
Shine: Moissanite has a brilliant shine that frequently outshines that of diamonds.

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