The international gem trade can be a shady business. In a quiet corner of a busy London pub, a trader, who asked to remain anonymous, tells C&EN about passing off synthetic gems, made in a ...

When Maisie Plant, the young wife of the American industrialist, Morton Plant, was seated next to Pierre Cartier at a dinner party in 1917, she was said to have marveled over two strands of pearls so ...

Those who have been clamoring to get up close and personal with gargantuan geodes, ancient blocks of granite, and glistening hunks of yellow fluorite, your time has finally come: Originally planned to ...