Most people assume diamond hunting requires industrial machinery, deep shafts, and corporate backing. But tucked away in the rolling hills of Arkansas sits a unique exception. At Crater of Diamonds ...

Diamonds are uniquely valuable due to their extreme hardness and exceptional thermal conductivity, making them the hardest known natural material, about 58 times harder than any other, according to ...

Add Yahoo as a preferred source to see more of our stories on Google. The discovery of the Lucara Diamond in August in the Karowe Mine in northeast Botswana rocked the jewelry industry, but few were ...

Botswana used its mineral wealth to slash poverty. But now, lab-grown diamonds are threatening the future of its biggest ...