ISLAMABAD: Pakistan Gems and Jewellery Development Company (PGJDC) has established five full-fledged and well-equipped gem identification labs in different cities, to provide facilities of gemstone ...

Pakistan Gems and Jewellery Development Company (PGJDC) has arranged a training course on Gemstone Identification and Grading at the Gem Exchange, Namak Mandi, in Peshawar on Tuesday. This two-week ...

Carla Tardi is a technical editor and digital content producer with 25+ years of experience at top-tier investment banks and money-management firms. Thomas J. Brock is a CFA and CPA with more than 20 ...

Spectroscopy was first used for studying minerals and gems soon after Isaac Newton attempted to separate sunlight into its component colors with the help of a prism. By the mid-1800s, researchers ...