Legends say that wearing a peridot pendant can bring happiness and contentment. Set in gold and surrounded with diamonds, the power of a peridot is said to intensify. Ruby is known as the gem of courage. Wearing a ruby pendant can help you get through the trials and tribulations of life. Sapphire has always been associated with the sacred and divine. A sapphire pendant is said to bring serenity and purity to the wearer.