Malachite

Your customers may want to know if a green gemstone in their jewelry piece is jade. As a gemologist, you’ll need to determine if the stone is jadeite…

In some cases, a hot point test won’t distinguish plastic simulants from natural gems. Some plastics release a protein smell when hot point…

Gem carvings vary widely in size, shape, and quality. You can find small, simple carvings with a glued-on bail for just a couple of dollars. Fine…

Acid testing is a destructive procedure gemologists and mineralogists can use to determine if some pieces are real or fake. Learn how to perform…

Our gemstone care guide covers many popular gems. Learn how best to maintain your gemstone jewelry and what kinds of stresses and cleaning methods…

Gem carvings are judged on material, workmanship, and artistry. Learn how to apply these criteria to a piece with our step-by-step guide.

A favorite color for nature-inspired designs, green gemstones never go out of style. Learn which of these 32 green gems hold up best for engagement…

How accurate are gem, mineral, and rock scanner identification apps? Our review covers the strengths and weaknesses of over 20 apps.

Emerald crystals can grow very large. Learn about some of the world’s largest emeralds, whether rough, faceted, or carved.