What is Moissanite?

Moissanite is a naturally occurring mineral composed of Silicone Carbide, first discovered in a Meteorite crater in Arizona by French scientist Dr Henri Moissan in 1893.

It is an incredibly rare naturally occurring substance, and almost all Moissanite available today is grown in a Laboratory, making it an ethical choice, with very little environmental impact.

Moissanite is an amazing alternative to diamond, but it is by no means a synthetic diamond or a diamond substitute. It is a unique gemstone, with its own unique properties and characteristics.

Mined Diamond Lab-Grown Diamond Moissanite
Composition Carbon Carbon Silicon Carbide
Hardness (Mohs Scale) 10 10 9.25
Brilliance (Refractive Index) 2.42 2.42 2.65 - 2.69
Fire Dispersion 0.044 0.044 0.104
Toughness Good to Excellent Good to Excellent Excellent
Origin Earth (Mined) Laboratory Laboratory
Cost ££££ £££ ££

In fact, as you can see from the above chart, it has more fire and brilliance than a diamond. Measuring 2.65-2.69 on the refractive index compared to diamond, as well as displaying over double the amount of dispersion. It is these qualities that give Moissanite its uniquely identifiable look – often described as …

At Noah James, we stock only Charles and Colvard Moissanites, the world’s leading brand and original manufacturer of Moissanite. All our Moissanites are Forever One and are completely colourless being in the DEF colour range, and VVS clarity.