What Is The Mohs Scale?

The Mohs scale (pronounced moze) is used to gauge a stones hardness. Diamonds are known for being one of the hardest substances on earth. A diamond is so hard it ranks 10 on the Mohs scale (the highest level of hardness). The hardness of a stone indicates the stone’s resistance to scratching or how the surface of the gem will respond to contact with a sharp point. This differs from a gem’s toughness, which is defined by how well a gem can survive an impact or resist breaking, chipping or cracking.... Read More