Historically, gems have been divided into precious and semiprecious classes. There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires, and emeralds continue ...

Semi-precious gems are also having a moment, driven by concerns about ethical mining and lab-grown doppelgangers. It’s time to take a look. Insofar as we’ve covered diamonds before in this ...

The Navratna, or nine gems, hold a revered place in Hindu mythology, blending beauty with cosmic significance. Each gem is linked to a celestial body, believed to balance energies and invite ...

Mining Cabinet Secretary Dan Kazungu admires one of the precious stones when he visited Gemstone dealers in Nairobi last week. [PHOTO: PIUS CHERUIYOT/STANDARD] They say the most expensive of the ...