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Colour variations

The rarest diamonds are pure white – actually colourless, to be precise. However they comprise less than one percent of all the diamonds in the world. The rest are, to varying degrees, coloured.

A common assumption is that diamonds are made of crystalised carbon. This is not entirely true. In fact, 98 percent of all diamonds contain an extra element, namely nitrogen, which compounds with the carbon and gives the stone a yellowish tint.

This does not influence the diamond’s ability to reflect the light. Furthermore, the differences in grading can be almost imperceptible. However it does affect the price.