“These findings resolve the long-standing controversy on the existence of hexagonal diamond,” researchers said.

After decades of debate, researchers say that they have found the clearest evidence yet for this rare form of carbon.

Interestingly, this improved extraction method has created an unexpected challenge: a glut of giant diamonds too large for typical jewelry use. The glut hasn't been helped by automation in the diamond ...

Growth of diamond in liquid metal alloy under 1 atmosphere pressure. (a) A photo showing the as-grown diamond on the solidified liquid metal surface. (b) An optical image of the as-grown continuous ...