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 spelling.

For expert information and advice, please feel free to call and speak with one of our diamond experts on 01932 260100 (UK) or 0044 1932 260100 (International).

Our experts are here 7 days a week to help give you any information and advice that you may need.

You can also visit our showroom in West London or visit our website [ Ссылка ]

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