ColourWise (WGF)
Gem Descriptions

The ColourWise Colour Grading System incorporates 1,550 digitized colour samples in thirty-one (31) different hues, five (5) saturation levels and seven (7) levels of luminosity. View ColourWise on your laptop, PC, iPad/iPhone or mobile. You can even use ColourWise to grade Pearls (White, Black and Melo) and Jadeite.

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