pink gems

How does faceting affect gem value? Unique custom-cut gemstones command high prices. Learn how custom cutting compares to factory cutting.

The crossed filters technique allows gemologists to detect chromium in gems. Learn how to build a portable device for conducting this useful ID…

Gemologists use the hot point test to determine if a piece is a plastic imitation or coated in wax. Learn more about this destructive test here.

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…

What kinds of gems can novice faceters cut to make a profit? Learn which gemstones make money reliably and which ones have limited potential.

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

Discover the July birthstone ruby – the “King of Colored Stones” known for its vibrant red hues. Learn about ruby meanings, origins, durability,…

Discover the beauty and meaning of October birthstones: pink tourmaline and opal. Learn about their unique characteristics, origins, durability,…

Gem formation usually involves mineral crystallization and other geological processes. Learn how these affect the gemstone properties gemologists…