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Glass Value, Price, and Jewelry Information
Everything you ever wanted to know about glass gemstones. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.
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 these unique gem materials for jewelry design.
Agate Buying Guide
Decorative, patterned forms of agate are excellent natural gems. Learn more about agate's mesmerizing patterns in our agate buying guide!
What is Gemstone Cleavage?
Gemstone cleavage is a break in a crystal along internal planes. Learn the science behind this and the difference between cleavage, fracture, and parting.
Obsidian Value, Price, and Jewelry Information
Everything you ever wanted to know about obsidian gems. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.
Is Uranium Glass Safe To Facet?
Uranium glass, or Vaseline glass, is a prized collector's item and is generally safe to handle. But is it safe to facet? Learn about the potential risks.
Tektite Value, Price, and Jewelry Information
An overview on Tektite Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of Tektite gemstones.
Gypsum Value, Price, and Jewelry Information
An overview on Gypsum Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of Gypsum gemstones.
Natural Glass Value, Price, and Jewelry Information
Natural glasses have the same bubbles and swirl lines of man made glass. Its optical and physical properties are the same as untreated glass.
Laserblue Value, Price, and Jewelry Information
A rare glass, always a pure blue with medium to deep tone. Typical glass inclusions, bubbles and swirl marks. Extraordinary hardness for glass at 6.5.
