Clues about water in Earth's deep interior were recently extracted from rare diamonds. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A rare ...

Experts explain how this element plays a key role in the price and appearance of your sparkler. A diamond’s clarity grade, from Flawless (FL) to Included (I3), reflects the size, location, and type of ...

A pair of diamonds that formed hundreds of kilometers deep in Earth’s malleable mantle both contain specks of materials that form in completely opposing chemical environments—a combination so unusual ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A rare type of diamond may suggest that water can penetrate deeper into Earth's interior than ...