Choosing a diamond is a big decision, so it’s important to be well informed before the purchase. White diamonds, for example, are graded on their purity and absence of colour, usually from D (colourless) to I and J (slight tints of yellow).
Read: Choosing a beautiful diamond
However, the spectrums of fancy coloured diamonds are graded differently based on its colour intensity - the more vivid and darker the colour, the more desirable it is. For example, a fancy yellow diamond must grade higher than a Z on the GIA D-Z white diamond grading scale to earn its namesake.
As fancy coloured diamonds are so rare, they are among some of the most famous in the world.
Read: The World Famous Diamonds
Below are detailed charts to help you choose your desired coloured diamond. Right click on the image to see charts in a higher resolution.
white diamonds
Source: Gemological Institution of America (GIA)
Argyle Pink diamonds
Source: Argyle Pink Diamonds
Yellow diamonds
Source: Gemological Institution of America (GIA)
Champagne diamonds
Source: Origin Australia
Blue diamonds
Source: D.NEA
More reading
Coloured Diamonds: The Facts
Buying the perfect diamond: the 4Cs and more
Which diamond shape are you?