garnet

Non-destructive tests are critical for gemologists trying to identify gems. Learn how measuring thermal properties, especially thermal inertia,…

New to the gem trade? Heading to a gem and jewelry show? Our jewelry and gem show FAQ can help you get ready and make the most of your trip.

Many people consider beautiful sky blue turquoise stones to be lucky. Learn about the turquoise symbolism and lore of Native American and other…

Choosing the best gemstone orientation for your rough takes skill and experience. Learn what factors you should take into account before cutting.…

Inclusion management is one of the most challenging aspects of gemstone faceting. Learn when to remove and when to keep inclusions.

A gemstone’s clarity grade indicates how free it is of inclusions and blemishes. Learn how to decipher the GIA clarity grading codes and types.…

Last weekend, I visited the Colorado Mineral & Fossil Fall Show, and I brought my mom! She’s always had an interest in rocks, but a gem show…

There are so many common gemstone treatments available today that keeping track of them can be difficult. This list and handy cheat sheet can help.…

Gemstone treatments and synthetics are becoming more sophisticated. Learn about the advanced gemology equipment that gem labs use to stay ahead…