What is the difference between a Moissanite and a Diamond

Can you spot the difference?

This video shows how close Moissanite and Diamonds are to one another. The Diamond is on the bottom and the Moissanite on the top.

Durability and Hardness

Gemstones are measured on the Mohs Scale of Hardness, this determines a gem’s ability to withstand breaking and surface scratches.

MOISSANITE: On the Mohs scale, moissanite scores a 9 to 9.25, a very good score that makes it one of the hardest substances on earth, and very suitable for everyday wear as an engagement ring and the hardest gemstone besides a diamond.

DIAMOND: Diamonds are the hardest known mineral and receive a 10 on the Mohs Scale of Hardness. Because of this exceptional score, diamonds are very durable and ideal for everyday wear. This contributes to their popularity as engagement rings’ center gemstones. This is also a reason why they are so expensive.

Impact on the Planet

Because moissanites are lab created, they are an appealing option for those seeking an eco-conscious gemstone as they require no mining. Because of this they are also conflict free with little human life cost.


This refers to the way in which a gemstone reflects light.

Moissanites exhibit a different kind of brilliance than diamonds do, this is because of it’s crystalline structure. Moissanite has a refractive index from 2.65 – 2.69, which is higher than a diamond.

Diamonds reflect light in three different ways. The white light, the rainbow of colors and the surface sparkle. The combination of these three gives diamonds their famous sparkle.



For the same size from the top view, Moissanites are dramatically lower in pricing than diamonds of that size. Moissanite gems typically vary in price only based on size and Quality. Much like a Diamond, Moissanites are graded into different color and clarity gradings. They are not as well policed as diamonds which is why buying them from a trusted source makes a huge difference.