Posts Tagged ‘clarity’

Gemology 101- How to Grade Colored Gems

Wednesday, June 9th, 2010

Finally, after much hard work and thought, we've launched, or rather relaunched our Mardon Colored Stone Grading System. Last year we posted most of this system along with our Gallery of Gems, but were never really satisfied with the format. Our excellent local internet consultants, Frye/Wiles, suggested a more internet-friendly way of presenting the system […]

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