Physicists have successfully created a lab-grown diamond with a hardness exceeding that of natural diamonds. By subjecting graphite to extreme pressure and heat, researchers synthesized a rare ...

Diamond is well-known for being the hardest natural material on Earth, though synthetic forms have been developed that are even tougher – a feat that researchers have managed again, through a new ...

The first diamond made by the group was millimeter-sized and was tested at 155 GPa, with thermal stability up to 1,100°C. Natural diamonds typically range from 70 to 100 GPa and can only ...