Posts Tagged ‘gemstone coating’

Paraiba Topaz- No Mine Exists

Saturday, June 6th, 2009

I was recently asked to appraise this topaz and a matching pair of 8 mm triangles. At first glance, the stones had a sort of attractive somewhat muted “teal” greenish blue color but something about the look of the stones was not quite right. A quick examination under our trusty gemological microscope revealed a surface […]

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