inclusions

Opals are unique gems with their own unique terminology. Learn the modern standard system for classifying and appraising opals used by major gem…

Typically blue, durable, and easy to cut, sodalite is highly desired by hobbyists. Even stones that lack transparency make lovely faceted gems.…

Even the most general definition of a gem has many exceptions. Learn what qualities have been used to identify gemstones both scientifically and…

Silky golden rutile inclusions in quartz have become quite popular. Read our rutilated quartz buying guide to help you choose a stone for your next…

Do you have an offer for bargain rubies that’s too good to be true? Learn what you need to know before you buy and avoid high-pressure sales tactics.…

Discover gemstones believed to have healing powers from amber to rose quartz. Explore how these ancient crystals might support wellness according…

Although too fragile for most jewelry use, fluorites are often faceted for collectors. They occur in a wide range of attractive colors and can be…

How goes gemstone grading work? Learn how gemologists evaluate both diamonds and colored gems and the qualities they examine.

A rather rare mineral, lovely blue-green grandidierite is seldom seen in gem or jewelry collections. Translucent material is sometimes cut into…