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alloway65

What numerical colour index system does GEMVAL use when coding their online Gemstone

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alloway65

What numerical colour index system does GEMVAL use when coding their online Gemstone colours? i.e 136, 154!

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Cali Craft and Gems

Gemstone color grading system

 

To see the colour number, hover your mouse cursor over the little black or white block in the upper right corner of the shaded block.

 

I discovered this quite by accident recently when double checking a carat weight calculator.

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alloway65

Many, many thanks, very much appreciated.

 

I want to try and start to sell some of my Gemstone collection and I wanted to at least try and give an accurate description of the Gemstone's colour in natural light!

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