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YouTubeSamara James
Guide to Diamond Colour (Color)
In this video, we explain the diamond colour grading scale, invented by GIA in the 1950s. The colour scale starts with D (colourless) and goes with increasing presence of colour to Z (yellow or brown). We also look at the variance you can find in colour grades, even from the same laboratory. This video also covers diamond color, the American ...
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Diamond Color Grading
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