SAPPHIRE. THE VIRGO BIRTHSTONE COLOR SYMBOLIZES WISDOM AND FAITHFULNESS, AND SHARPENS THE MIND. Those born in September, or under the star sign of the virgin, have Sapphire as their birthstone color. Once thought to guard against evil and poisoning, this intense blue color was a favorite of priests and kings. Representing purity, loyalty and serenity, it is thought to be resistant to corruption and help to ward off pain. Virgos are known for their attention to detail, highly developed communication skills, and deep sense of humanity, so the wearer will benefit from the color’s intense natural energy in both mind and body.