Modified round brilliant opal

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Gemstone: Water Opal
Location of Origin:Mexico
Origin:Natural
Treatments:None reported
Cut Type:Round Brilliant
Weight:13.45 cts.
Cut by:Brett Kosnar
The gem is essentially colorless at first glance, but when it was put under the mercury lamps to be photographed, an electric blue sheen appeared.
Size: 16.70 mm


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