For Gem Enthusiasts

A visual examination is the first step to identifying a gemstone. These quizzes will help student gemologists learn to recognize what they might…

Diamonds may form under intense heat and pressure, but under what conditions can diamonds burn? Learn the science behind a diamond’s fiery end.…

Test your knowledge of refractometer gem analysis with this mini-quiz. You can review material on any question you miss at the end of the quiz.

A tourmaline crystal can show many color combos. This system for grading the C axis of rough can help faceters visualize a gem’s color accurately.…

Learning how to identify gems involves more than just data. This gem identification quiz can help novice gemologists learn how to choose tests…

Fuzzy refractometer readings may be the result of poorly faceted gems, the wrong amount of refraction liquid, and even stone size. Learn more here.…