Cinnabar Value, Price, and Jewelry Information
Magnificent red cinnabar is extremely soft and fragile, so faceted material is rare. It's cut primarily for collectors and carvings.
1 Minute Read
Related Articles
Unique Gem Materials for Jewelry Design
Some gems have an appeal beyond their appearance. If you’re looking for a gem with a story to tell, try...
Read More
Black Diamond Value, Price, and Jewelry Information
Black is a color that can say a lot. Wearing black diamond jewelry communicates a sense of unique strength and...
Read More
Chameleon Diamond Value, Price, and Jewelry Information
Professionals will tell you never to trust a trade name used to describe the appearance of a fancy colored diamond....
Read More
Gray Diamond Value, Price, and Jewelry Information
Diamonds with a pure gray hue are a rare treasure indeed. More often, gray is mixed with blue or violet...
Read More
Latest Articles
10 Gemstones Rarer than Diamond: The Earth’s Scarcest Treasures
Are you looking for something truly unique for your next jewelry purchase? Explore these ten gemstones that are actually rarer...
Read More
Identifying Synthetic Gems
Distinguishing between natural and synthetic gems is a critical skill for gemologists. Learn about gem making processes and the telltale...
Read More
Natural Radiation and Gemstone Color
Natural radiation can create beautiful colors in many gems. Learn how natural radiation works and what gems are most commonly...
Read More
Agate Value, Price, and Jewelry Information
Explore the mesmerizing world of agate — from its varieties to jewelry uses and sources. Uncover the secrets of these...
Read More
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!