Diamonds are the hardest natural substance on earth with a 10 on the Mohs hardness scale. Because of their hardness and general beauty, diamonds are considered a favorite by jewelers to be placed in rings, […]
Diamonds are the hardest natural substance on earth with a 10 on the Mohs hardness scale. Because of their hardness and general beauty, diamonds are considered a favorite by jewelers to be placed in rings, […]