Have you ever found a Petoskey stone on a trip up north? They are so spectacularly beautiful that it’s no wonder they are designated as Michigan’s State Stone. The only problem with Petoskey stones is ...

A diamond cutter’s ultimate quest is to optimise the yield, beauty and profit from a rough stone. New technology is enabling manufacturers to map rough diamonds and assess their polished potential ...

Researchers have uncovered strong evidence that the ancient Chinese used diamonds to grind and polish ceremonial stone burial axes as long as 6,000 years ago -– and incredibly, did so with a ...

The Stone gets polished up - but not too much It's easy to drive by The Stone and not even know it's there, especially considering it doesn't have an exterior sign and it's a bit off the beaten ...

At 1.5 inches long, this bladder stone would have been considered quite large. Ouch. PLOS ONE, doi:10.1371/journal.pone.0109096.g001 It may look innocuous now, but ...