Sapphire BraceletStone: Sapphire Colour: Deep Blue Purpose: Intuition The birthstone for September is blue sapphire. Though sapphires get their name from the Latin sapphirus meaning blue, sapphires come in a rainbow of shades (with the notable exception of red sapphires which are classed as rubies). In the Middle Ages, sapphires were prized for their blue colour, which symbolized the heavens or the divine. Buddhists also bestowed spiritual meaning on sapphires,