It is true that diamonds in available in the market in a multiple array of colours but the most favoured colour has to be white. Out of these, most of the diamonds have tinges of brown or yellow in them in order to add a new charm to the jewel altogether. Brown diamonds are rarely found and thus, come for a price accordingly. Diamonds are also available in colours such as green, champagne or pink. At times, you might not be able to distinguish between two different coloured diamonds owing to the fact that the colours are indeed, hard to distinguish. Only an expert eye can properly segregate the colours of both the diamonds. These diamonds bear a heavy cost and are extremely rare which is why, you will have to shell out more on these.