What is Diamond?
Diamond is considered a crystal mineral. It is rare and unique because of its chemical temperament.

What is Ruby?
The melting point of the ruby stone, which is usually red, is 2050 ° C. The hardness of the ruby stone is the hardest mineral after mating.

What is Emerald?
On the Berilin Mohs scale, its hardness is eight and the emerald does not shine much more than the other precious stones.