A rare two-coloured diamond has been discovered in Botswana, in southern Africa. The rough stone is half-pink and ...

A pair of diamonds that formed hundreds of kilometers deep in Earth’s malleable mantle both contain specks of materials that form in completely opposing chemical environments—a combination so unusual ...

Diamonds are made out of carbon — highly organized carbon, that is. Geologists are still guessing how diamonds formed in the ...

A study found that Australia's tectonic plates stretched, creating large deposits of pink diamonds. Pink diamonds are made under extreme pressure when two continents collide. The scientists hope that ...

Discover how scientists are creating flawless diamonds without heat or pressure. A new method uses electron beams to turn ...

The stone, unearthed at the Karowe mine in northeastern Botswana, is now under study by the Gemological Institute of America ...

Seemingly contradictory materials are trapped together in two glittering diamonds from South Africa, shedding light on how ...

Diamonds aren't always colorless; they can also be blue, yellow, green and even pink. But what makes these jewels come in varied hues? After forming, diamonds need to rise to the surface very quickly ...

Formed millions to billions of years ago, diamonds can shine light into the darkest and oldest parts of the Earth's mantle. The analysis of ancient, superdeep diamonds dug up from mines in Brazil and ...

“A diamond is forever.” That iconic slogan, coined for a highly successful advertising campaign in the 1940s, sold the gemstones as a symbol of eternal commitment and unity. But our new research, ...

A University of Tokyo team has turned organic molecules into nanodiamonds using electron beams, overturning decades of assumptions about beam damage. Their discovery could transform materials science ...