Diamonds in nature famously form under immense pressure in Earth’s mantle. But a new laboratory technique allows diamonds to skip the squeeze. The most common method for producing synthetic diamonds, ...

In adamantane, the carbon atoms are in the right diamond-like arrangement, but each carbon is capped with hydrogen atoms. As ...

Sparkling diamonds and verdant emeralds are some of the most coveted and priciest gemstones. But which precious stones are rarer: diamonds or emeralds? In terms of total known deposits, emeralds are ...