6.63-carat blue topaz in a square cushion cut, approximately - Lot 17

Lot 17
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Estimation :
30 - 40 EUR
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6.63-carat blue topaz in a square cushion cut, approximately - Lot 17
6.63-carat blue topaz in a square cushion cut, approximately 10.9 x 10.9 mm. Beautiful blue color. Origin: Africa. Treatment: irradiated and then heated to stabilize the color. Clear to the naked eye.
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