Lab-grown diamonds have become so popular with consumers that some couples are asking jewelers to swap the natural diamond in their rings for a lab-created sparkler. "Just last week we had three or ...

Scientists have discovered a way to synthesize diamonds, and it doesn't even require a starter gem to get things going. The new technique can actually grow diamonds in normal atmospheric pressure, and ...

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 ...