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Fine Jewelry University

1. 

   Gem in the Spotlight: Topaz

   FJU Category: Gemstones | Tags: Colored Gemstones, Folklore, Gem Spotlight, Gemology, Jewelry History, Topaz

   … grey color. Blue Topaz: The most common color. A full range of shades is available from light Sky Blue to dark London Blue. Topaz is also found in less commonly known colors like green, pink, and purple. Imperial Topaz is by far the most …One of the biggest is blue topaz. Gem suppliers use a neutron bombardment method in a nuclear reactor to produce the London Blue Topaz. An electron bombardment in a linear accelerator results in the light Sky Blue Topaz. If both treatments …