Artificial Diamonds - Now Available in Extra Large

Diamonds are a girl's best friend, they say - and soon they could be every girl's best friend. A team in the US has brought the world one step closer to cheap, mass-produced, perfect diamonds. The improvement also means there is no theoretical limit on the size of diamonds that can be grown in the lab. A team led by Russell Hemley, of the Carnegie Institute of Washington, makes diamonds by chemical vapour deposition (CVD), where carbon atoms in a gas are deposited on a surface to produce...Full Story