Shown above is a natural blue zircon from an unknow location. This stone, cut in Russia, has good proportions. The facet shape, polish and light return are all very good. The clarity of this gem is excellent. The color of this gem is a uniform turquois-like light, slightly greenish-blue. Zircon is a doubly refractive mineral. When viewed in certain directions some facet junctions will appear as double lines. Some facet doubling is apparent in the magnified image of the gem shown above. This stone would look great in a pendant, pin, or ring.

Note: Natural zircon comes out of the ground in many colors (light browns to dark reds), but blue is not a natural color for zircon. Long ago, ingenious gem merchants learned that heating natural brown zircon would change the color to a brilliant greenish blue. The gem shown above has undoubtedly been heat treated to alter/improve its color.

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