The Diamond Colorimeter is a great innovation in diamond spectral analysis. The Diamond colorimeter uses full spectrum analysis to accurately grade colour.  It can break down one colour into five sub divisions. 

For White Diamonds AnchorCert Gem Lab prefers to use the colorimeter as a guide only and use the GIA master stones to assess colour. This is found to deliver a more consistent result. However, the colorimeter is extremely useful for fancy coloured diamonds where no master stones are available.

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