Company News

Company News


Opal Classification and Grading Scheme

In May 2011, Opal Horizon Limited (“OHZ”) presented a new comprehensive gem quality opal grading system at the Gemological Institute of America Symposium in Carlsbad, California.

OHZ is making a giant leap forward into establishing a solid quantifiable grading system, establishing specific gem grade qualities for this precious stone.  This is the first step of a global marketing effort to restore confidence and transparency for the trade and consumers.


 

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