A pair of diamonds that formed hundreds of kilometers deep in Earth’s malleable mantle both contain specks of materials that ...

South African diamonds have revealed nickel-rich metallic inclusions, offering the first direct evidence of reactions ...

Seemingly contradictory materials are trapped together in two glittering diamonds from South Africa, shedding light on how ...

Kempe and Weiss’s research marks a breakthrough, the first natural evidence of nickel-rich alloys at the depths long ...

The graphite found in your favorite pencil could have instead been the diamond your mother always wears. What made the difference? Researchers are finding out. How molten carbon crystallizes into ...

Diamonds from South Africa's Voorspoed mine have revealed the first natural evidence of nickel-rich metallic alloys forming deep in Earth's mantle ...

We've all heard that diamonds can cut through glass, but now scientists have found Earth's hardest solid can withstand pressures just over a million atmospheres before getting crushed. For comparison, ...

While diamonds continue to plunge in value due to lab-grown alternatives, these gemstones cannot be grown in a lab.