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 ...

Have you ever wondered why a diamond can catch your eye from across a room? Well, this article will walk you through the ...

Jeweler Harry Winston donated the famous Hope Diamond—the largest-known deep blue diamond in the world—to the Smithsonian Institution in 1958. It arrived in a plain brown package by registered mail, ...

Deep beneath our feet, colossal explosions in the mantle have, at times, blasted diamonds toward the surface in violent jets that scientists now liken to “fountains.” These eruptions, triggered when ...