A sapphire is said to bring serenity and purity to the wearer. Wear a pink sapphire pendant for serenity and purity with a splash of fun and irreverence. An amethyst pendant is said to bring spirituality, tranquility and peace to the wearer. It is even said to help one succeed in business. Ruby is known as the gem of courage. Wearing a ruby pendant can help you get through the trials and tribulations of life.