Capital Coloured Diamonds wants you to know that rare, Natural Fancy Coloured Diamonds are found in almost every shade imaginable and each stone produced is considered "one of a kind". The physical conditions required to form any natural coloured diamond occurs so rarely that roughly only 1 diamond in 10,000 possesses this natural colour.
So what makes these miracles of nature so rare? How does a typical colourless diamond end up coloured? Natural colour diamonds are formed through a process that requires the presence of not only the original magical formula for all diamond creation, but also the presence of additional trace elements and distortions to the typical diamond crystal. If an element interacts with carbon atoms during diamond creation, the diamond's colour can change. Radiation and pressure on a diamond's structure will also impact its colour as well.
The presence of nitrogen can impart yellow or orange shades to a diamond. Boron will impart a blue shade to a diamond ranging from deep blue to sky blue. The presence of hydrogen will produce beautiful unique violet hues. Tremendous pressure exerted on a diamond deep in the earth can abnormally compress its structure, the result is red, pink, purple, brown and cognac diamonds. And it is natural radiation impacting already formed diamonds over millions of years that will give them a green hue.