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Gem Focus - October 2019

Posted on October 3, 2019 by The Gemworld Staff

Tourmaline:The Mineral that comes in every Imaginable color. The beauty of tourmaline is to an extent derived from its complexity. Tourmaline’s chemical structure is one of the most complex of all minerals. Although not commonly acknowledged…

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Colored Stone Market

Challenges are affecting global appetite for gem products. Prices stable for finer quality natural gems. Bumpy road ahead but long-term outlook pretty positive. Mining sector fast to respond to current economic conditions. Confidence solidly behind…

Cobalt Spinel

Spinel is a magnesium-aluminum silicate that forms in the cubic system. While most gemologists are only aware of gem quality, transparent spinels, it is, in fact, a solid solution series with many different species that…

Behind the Designs

For the first in our series on innovators in jewelry design, we are focusing on Philip Zahm, president of Philip Zahm Designs. Well established as a dealer of fine gemstones for decades, Zahm has been…