Colors of sapphire are referred to as velvety blue, liquid blue, evening-sky blue, Cornflower blue. Sapphire has been beloved for centuries as the ultimate blue gemstone. The ancient Persian rulers believed that the earth rested on a giant sapphire and its reflection colored the heavens blue. Indeed, the very name in Latin, "Sapphiru," means blue. Sapphire is the birthstone for those who are born in September. It is also used to celebrate the 5th and 45th anniversary.