Some of the most extraordinary gems ever found belong to a rare class of diamonds known as CLIPPIRs (Cullinan-like, Large, ...

The 'Picasso diamond' shows complex growth patterns highlighted by cathodoluminescence Geoscientists can't say if diamonds are forever, but they can say that some are already billions of years old.

New research into the forces that bring diamonds to the surface from deep in the Earth's mantle could help locate undiscovered diamond deposits, say Macqurie University geologists. In a new study ...

The Hope and Koh-i-Noor diamonds—two of the most famous Golconda diamonds—may have come from southern India’s Wajrakarur Kimberlite Field, according to a team of researchers that reviewed the possible ...

Boulder, Colo., USA: If you’ve ever held or beheld a diamond, there’s a good chance it came from a kimberlite. Over 70% of the world’s diamonds are mined from these unique volcanic structures. Yet ...

Visitors to the American Museum of Natural History may be attracted by glitter, but scientists see more in the unusual stone. By David Belcher See more of our coverage in your search results.Encuentra ...

As teenager Tana Clymer discovered this month, watching where you step can really pay off—especially on a certain patch of volcanic soil in southwest Arkansas. Visitors to Crater of Diamonds State ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Geoscientists can't say if diamonds are ...