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Blue topaz ct.4.22

# 2406


18,30 €

100 left in stock

Blue topaz ct.4.22

More details

BLUE TOPAZ Most of the topaz in the marked are irradiated and heated, Starting from a colorless material, become brown after irradiation and then blue after heating at 500 C° There is also a natural blue topaz coming from India,Brazil,Nigeria,but is quite rare and difficult to separate from an irradiated one. This gem here has been treated many years ago and the color is stable and safe. Location: Nigeria.Calibrated Size: 8x12x6 mm.( may be a little variation of 0.02 mm.) Weight: 3.89 ct. ( slight variation on each stone) CODE# 2406

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