Millions of diamonds are graded in GIA Laboratories annually. However, more and more counterfeit diamonds have shown up in ...

Jacques addresses the significance of the astounding Lucara Diamond recently discovered, and GIA's work helping dealers, ...

which is why we highly recommend anyone considering a diamond to look for one with a GIA report,” Barnett said. “GIA Diamond Grading Reports are based on rigorous examination by trained and ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics ...

A new documentary traces Humphrey Bogart’s development from stage actor to the embodiment of brooding cinematic cool. By Ben Kenigsberg Starring Dwayne Johnson and Chris Evans, this Christmas ...

She never puts a foot wrong when it comes to fashion. And Roxy Horner turned up the heat in a lace black top and PVC trousers as she posed up a storm at the John Lewis Christmas advert party on ...

Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip. (Don’t confuse carat with karat, as in “18K gold,” which refers to ...

The photo exhibition is in the centre of Athens and is free to enter. The METApolis photographic group will open the exhibition “Mon Afrique: Uganda | Bonds of Humanity” in the Blank Wall Gallery on ...

But the Mohs scale is deceptive. The steps between the minerals are not evenly spaced. For example, diamond is only one number away, but it’s many times harder than gems in the corundum family.