Lab-grown diamonds are gaining in popularity, taking market share from their mined counterparts. How do you decide which is ...

(For some parts of the process, an automatic machine is sometimes used.) Once the diamonds are cut, polished and perfected, HRA sends them to the Gemological Institute of America (GIA) to be ...

Nonetheless, let's take a look at the diamond industry as a whole and learn about the technologies being used to cut and polish what is regarded as the most valuable gem ever discovered in the ...

A billion-year-old black diamond, believed to be the largest cut diamond on Earth, is going up for auction. There are competing theories about the origins of the gem, named The Enigma, including ...