inclusions

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.

The minimum cutting technique will help you get the largest gems possible from rough. Learn how to deal with internal and external problems in gemstones.…

Quartz is one of the most abundant minerals on earth. Learn how quartz forms and how its most popular varieties get their colors.

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.…

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…

Paraíba’s neon blue hues stunned the gem world in the 1980s. Read about the quality factors for this striking gem in our paraíba tourmaline…