Precious stones are minerals that have a number of qualities, also called gems.
Geologists say that the precious stones appeared as a result of geological mechanisms. Therefore, the movement of tectonic plates, the formation of mountains, including volcanic phenomena, erosion and sedimentation are the basis for the formation of precious stones.
The most expensive diamond in the world has an estimated price of 400 million dollars
Why are some stones more precious than others?
Minerals that have certain qualities, such as purity, colour, degree of transparency, hardness, are the precious stones that you know.
Moreover, you consider precious stones as rare, pure, hard minerals and of special beauty.