Sapphire is said to be the wisdom stone, stimulating concentration, enhancing creativity and promoting purity and depth of thought. It is believed to focus and calm the mind as well as remove unwanted thoughts, depression and mental tension. It is known as the stone of new love and commitment and is claimed to be useful in encouraging faithfulness and loyalty. Sapphire is thought to bring peace of mind, serenity and prosperity. Because of its blue color, it is associated with the throat and brow chakras where energy imbalances are said to cause sore throats, headaches and nightmares.