A stretchy, mid-level layer of nanodiamonds allows the typically hard, brittle crystal to bend, not break, under pressure.

After decades of chasing after a rare hexagonal diamond, a Chinese team says their iteration of the elusive material is the most important yet. Reading time 3 minutes In 1962, researchers hypothesized ...

Diamonds are made out of carbon — highly organized carbon, that is. Geologists are still guessing how diamonds formed in the Earth from 1 billion to 3 billion years ago.