Diamonds are chemically similar to another form of carbon, graphite, which is dark, soft and conducts electricity. In ...

Diamonds are a girl’s best friend, as Marilyn Monroe sang 70 years ago – and fiendishly hard to find. “Diamond producers sometimes wish they were mining gold, copper or some other raw material, ...

Diamonds may be symbols of beauty and strength, but their journey to the surface is nothing short of violent. More than 70% of the world’s diamonds are mined from kimberlites — rare volcanic pipes ...

Boulder, Colo., USA: If you’ve ever held or beheld a diamond, there’s a good chance it came from a kimberlite. Over 70% of the world’s diamonds are mined from these unique volcanic structures. Yet ...