Although it is generally thought that diamonds are colourless, there are actually a wide range of hues which can greatly affect value. Colourless or near-colourless diamonds can be graded. Diamond colours are generally graded on an alphabetic scale, from D, which is the best, to Z, which is a distinctly yellowish-brown colour. However, if a diamond has a strong colour it is termed a fancy coloured diamond and some such stones are much sought after.

This is how we grade the colour of a diamond:



Please see the chart below; you will see the definite change from white at the top of the scale to a faint yellow at the lower end of the scale.