Geology professor Dan Schulze calls this singular gem from the remote Guaniamo region of Venezuela the "Picasso" diamond. The blue luminescent, high-resolution image of a diamond formed over a billion ...

Britain’s Crown Jewels include a “super deep” diamond that was formed close to the Earth’s core. The Cullinan Diamond is the largest diamond ever discovered and experts have used pioneering laser ...

Microscopic, ugly diamonds from the Northwest Territories are illuminating how diamonds are made — and pointing to an unexpected helper in the process. A new study suggests they formed from ancient ...

Researchers have succeeded in creating a rare type of diamond, known as lonsdaleite or hexagonal diamond. This material, whose hardness could surpass that of conventional diamonds, opens new ...

A dirty, $10 diamond with a prize inside has helped reveal that there are vast quantities of water stored deep inside the Earth. The diamond formed in the "transition zone" around 410 to 660 ...

Diamonds are the hardest natural substance on Earth, but that may not necessarily be true on carbon-rich exoplanets where certain temperature and pressure conditions create an ultra-dense form of ...

Deep below the surface of our world, far beyond our feeble reach, enigmatic processes grind and roil. Every now and then, the Earth disgorges clues to their nature: tiny chthonic diamonds encasing ...