Diamond is the most hard-natural substances, is Morocco's hardness of 10 the only fossil, known as "the King of hardness." Its hardness is anti-motorized corundum 140 times, more than quartz 1100 times, hence its unparalleled hardness can be imagined.
It should be noted that: the hardness of diamonds, said here particularly, it refers to the ability to resist external forces characterizations strong, but it is brittle, afraid heavy blow, blow after its cleavage-will be broken. Although diamonds are the most hard-natural substances, but may also be using a hammer to crack a it. Therefore, the wearing of diamond jewelry, should pay special attention to protection.