Cassiterite Value, Price, and Jewelry Information
Cassiterite is a durable gemstone with tremendous dispersive fire, especially visible in properly cut pale-colored stones. As the principal…
Sulfur Value, Price, and Jewelry Information
Although sulfur is very abundant, facetable material is not. Sulfur is also enormously difficult to cut and almost impossible to wear, so faceted…
Round Brilliant Cut Grossular Garnet, Tanzania, .81 Ct. cts
This stone has a very good yellow color and in spite of having some crystal inclusions, it looks reasonably clean under normal viewing conditions.…
Chrysoberyl Value, Price, and Jewelry Information
Although many gems show a cat’s eye effect, when the term “cat’s eye” is used alone, it always refers to the rare gemstone chrysoberyl.…
Padparadscha Sapphire Buying Guide
What qualities should you look for when padparadscha sapphire buying? Learn about the sunset colors and other properties of these gems.
Alexandrite Value, Price, and Jewelry Information
Discover the rare and mesmerizing alexandrite gemstone. Learn all about the incredible color-changing properties, value factors, and origins…
Painite Value, Price, and Jewelry Information
Until 2001, only three painite crystals were known to exist. Since then, additional discoveries have produced many more specimens of this deep…
Papagoite Value, Price, and Jewelry Information
Cerulean blue papagoite crystals are too small for faceting. However, massive material mixed with quartz can be cabbed, while quartz crystals…
Brookite Value, Price, and Jewelry Information
Brookite usually occurs in very dark colors, transparent only in small fragments. Cuttable crystals are exceedingly rare, making attractive…
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