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There are any number of ways by which gems can be classified. The remainder of this presentation describes severa...

Although you might not be able to give a precise definition of a gem at this time, few of you would have any trou...

In October 2017, members of the National Association of Jewellers (NAJ) and Gem-A embarked on the trip of a lifet...

On a recent trip to Brazil, I was fortunate to have an opportunity to travel through the eastern state of Minas G...

AGATE • Cryptocrystalline aggregate of quartz • Translucent to opaque • Banded...

BIRTHSTONE GUIDE: GARNET FOR THOSE BORN IN JANUARY If you'r...

Carat and Size of Gems Weighing Gems: In the early history of gem marketing, depending on the geographic location, one of two common i...

Although there are a dozen or more physical properties which can be measured, in this course we will concentrate on just a few. In particula...