Pigeon’s blood is a term given to the most precious colour of Ruby. Contrary to popular believe, it’s not the colour of a pigeon’s blood that is being described. It’s actually the colour of a pigeon eye. They are only found in Burma and are very rare. Untreated or unheated pigeon’s blood rubies are extremely rare and demands a very high premium, even higher than that of a top quality diamond at per carat price.