Scientists believe they have solved the puzzle of why diamonds "erupt" in the Earth's surface paving the way for future discoveries of the prized jewel.The team of researchers, led by the University of Southampton, have discovered that the breakup of tectonic plates is the main driving force for the generation and eruption of diamond-rich magmas from deep inside the Earth.Diamonds are hundreds of millions or even billions years old and are formed under great pressure.

Scientists believe they have solved the puzzle of why diamonds "erupt" in the Earth's surface paving the way for future discoveries of the prized jewel.The team of researchers, led by the University of Southampton, have discovered that the breakup of tectonic plates is the main driving force for the generation and eruption of diamond-rich magmas from deep inside the Earth.Diamonds are hundreds of millions or even billions years old and are formed under great pressure.