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 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 ...

Lab-grown diamonds have become a popular choice for jewelry and engagement rings because they’re more affordable and are sourced sustainably. However, if you’re wondering whether lab-grown diamonds ...

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 ...

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 ...

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Very few gems can withstand the intense pressure of Earth's mantle, but some require it to crystallize. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...