This underrated gem has surprising colors and wilder stories. Here’s how to sell them both.

You've probably heard that Idaho is nicknamed the Gem State, but few of us ever go looking for the one that's so unique it's the state's official gem: the star garnet. What's really special about this ...

Kalispell Middle School teacher Kris Schreiner demonstrates how to use a sluice to eighth-graders, from left, Shyann Richsel, Hallie Granley and Kaylee Whitten during a lesson on panning for gold, ...

Adela Skoupa, from the National Museum in Prague’s collection care department, prepares items for display as part of the “Brilliant Bohemian Garnets” exhibit at the National Czech & Slovak Museum & ...

Look beyond classic red garnets this year, and embrace the full spectrum of this gorgeous January birthstone. Garnet comes in a wide range of hues, including green, orange, and purple. Some stones, ...

The irradiation of gemstones in research reactors is a widespread practice, carried out to enhance their colour and increase their market value. The IAEA works with national regulators to ensure this ...