1.90-carat "Blue London" blue topaz, oval-shaped, approximat - Lot 10

Lot 10
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20 - 30 EUR
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1.90-carat "Blue London" blue topaz, oval-shaped, approximat - Lot 10
1.90-carat "Blue London" blue topaz, oval-shaped, approximately 8.9 x 6.8 mm. Very beautiful deep blue color. Origin: Brazil. Treatment: irradiated and then heated to stabilize the color. Clear to the naked eye.
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