They don’t make them like they used to — at all. It can take natural diamonds over three billion years to grow, but researchers in a South Korean lab have successfully fabricated the precious stones ...

Diamonds are the hardest natural substance on Earth, but that may not necessarily be true on carbon-rich exoplanets where certain temperature and pressure conditions create an ultra-dense form of ...

According to the experts, there is no way for the average person to differentiate a natural from a lab-grown diamond. If you’ve bought a piece of fine jewelry containing a diamond in recent years, you ...

Diamonds form deep within the Earth's mantle, around 250 kilometers below the surface, where immense pressure (up to 10 GPa) and temperatures (around 2,200 °C) compress carbon into diamonds over ...