Jeremejevite Value, Price, and Jewelry Information
Jeremejevite would make a durable and attractive jewelry stone, but this rare mineral occurs even more rarely as facetable material. Recently,…
Engagement Ring Setting: What’s Your Style?
Choosing a setting is the most important decision when shopping for a ring. Read about your options in this comprehensive guide to engagement ring…
What is Gemstone Transparency?
Gemstone transparency describes how much light passes through a gem and how it scatters. Learn what causes a gem to be opaque, translucent, or transparent.…
Mistress: Online Faceting Designs and Diagrams
The Mistress gem design by Jeff Graham looks like a princess cut but works well with light-colored stones. Learn more about this design for novice…
Zircon Value, Price, and Jewelry Information
Don’t be confused by the name. Zircon is a natural, magnificent, and underrated gemstone that has been worn and treasured since ancient times.…
Table of Refractive Indices and Double Refraction of Selected Gems
Refractive indices and double refraction (birefringence) help gemologists identify gems. The following table lists these values for selected…
Before and After: Pictures of Repaired and Recut Gems
Take a look at these before-and-after pics of repaired and recut gems and learn how a great lapidary can improve the value of many types of gems.
Signature #4: Online Faceting Designs and Diagrams
The Signature #4 is Jeff Graham’s favorite trillion cut for light-colored gemstones. This popular design is also fast and easy to cut.
Barion Emerald Cut Sapphire, ElDorado Bar, Montana, U.S.A., .70 Ct. cts
A completely natural sparkling Montana sapphire with a pleasing aquamarine-like blue color.
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