inclusions

Our lapis lazuli buying guide can help you learn how to grade these gems, what to avoid, and how to identify a high quality stone or a bargain in the…

The modern birthstone for March is aquamarine, a blue stone often connected to the ocean.

A little-known and rare collector’s gemstone, villiaumite is very difficult to facet. Its toxicity also makes it inadvisable to handle or wear.…

The 10X loupe is the gemologist’s best friend. Learn how to examine gemstones for fractures, inclusions, color, and much more with this simple…

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

A glossary of frequently encountered gemstone faceting terms for the student gemologist. Our list covers gemology, gem cutting, and equipment.…

Recutting gems that have been poorly cut can increase their value significantly. See how precision custom cutting can transform a gem.

What is the birthstone for September? The birthstone for September is sapphire. Sapphires are members of the gem species corundum. Depending…

Originally known as bixbite, red beryl is one of the rarest, most desirable, and most expensive gemstones. Most fine crystal specimens are zealously…