Malachite

An exceptionally realistic chameleon carved from chrysocolla by Gerd Dreher for Asprey & Co. (Malachite sometimes occurs in combination…

Our table comparing the properties of jade lookalikes with natural jade will help gemologists distinguish authentic jade from simulants.

Learn everything about jade buying with our comprehensive guide. Discover quality factors, treatments, and pricing for jadeite vs nephrite…

Blue is one of the rarest colors in nature. Nevertheless, blue gemstones are always in demand for jewelry. While people have adorned themselves…

Since ancient times, emerald has been synonymous with “green.” However, there are so many more green gems, giving you plenty of alternatives…

For over 7,000 years, jade has held an almost mystical power over human imagination. Ancient Chinese emperors believed jade connected them to…

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…