A 3 carat ruby’s colour is what really matters. The most sought-after colour is a bright, intense crimson called “pigeon blood.” This word is the ultimate choice for ruby collectors as it evokes the rich, deep red colour of pigeon blood. A 3 carat ruby, on the other hand, can display an enthralling range of reds, from a flaming orange-red to a deep, nearly plum-like colour. The choosing process is a beautiful dance between personal desire and the gem’s innate character, as each variety gives a distinct personality.