Besides blue, sapphires are also found in pink, yellow, orange, violet, green, as well as others which are colourless or contain other tones.
As with the blue sapphire, the colour of the stones is defined by the type of impurities present, chromium for pink for instance.
Most fantasy coloured sapphires are found in Sri Lanka.
The Smithsonian Institution in Washington is home to a 19.4 carats pink sapphire.
Sapphire can be heat treated; stones that are too clear, too dark or with many inclusions can be modified by heating. This process boosts the colour and clarity.
The distinction between a pink sapphire and a pink ruby is a matter of deontology, as the stone can be named pink ruby only if its colour is a sustained pink.