Identifying gemstones is not a trivial task. While properties such as color and transparency can help with identification, gemstones such as rubies, spinels, and garnets can be difficult to ...
Synthetic gem-crystals are available since the late 1800s and their production processes were more and more refined. Later, starting in the 1950s, diamond was available via different types of ...
Pakistan Gems and Jewellery Development Company (PGJDC) has organised a training course on gemstone identification at its Gem Exchange at Namak Mandi, Peshawar. Ilyas Ali Shah, a PGJDC geologist, is ...
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