Diamond is the only gem with a single element. Diamonds are formed in the Earth’s mantle, at depths exceeding 120 km (75 miles), under extreme temperatures and pressures. Over a billion years, the ...

A new form of diamond has been created. Its unique structure gives it properties that are similar to those of natural diamonds, but it is more stable under extreme heat, so may be useful in tools that ...

Even with the weight of worlds on its shoulders, diamond resolutely refuses to buckle under the pressure. Thanks to the highest-pressure X-ray diffraction experiments ever reported, researchers have ...

Gas-jet deposition has emerged as a highly promising technique for the synthesis of diamond structures, employing high-velocity gas streams to activate and transport precursor species under controlled ...