A gemstone is the name given to a rare or otherwise highly prized mineral crystal. They are often cut and polished to make jewelry, ornaments, and clothes. Gemstones have been sought after by mankind ...

“Diamonds are a girl’s best friend”, as Marilyn Monroe sings, dripping in what are - presumably – imitation diamonds. Many such moments have solidified diamonds and other gems as rare, invaluable ...

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 ...