Many people believe that diamonds are formed from coal. However, coal has rarely played a role in the formation of diamonds. In fact, most diamonds that have been dated are much older than Earth’s first land plants – the source material of coal!
Diamonds are crystals of pure carbon that form under crushing pressures and intense heat. They mostly form in the Earth’s mantle, the layer beneath the crust or surface layer.
The average diamond is one to three billion years old. Diamond formation is not a fast or simple process.
Learn more about this fascinating process with this video >>>>>