Knot of Isis
Always made of red stone, the Knot of goddess Isis (also known as the Tyet Symbol) was a stylized representation of the goddess' genitals. Almost every woman carried this amulet in order to be granted all of Isis’ wisdom and knowledge. When Isis was shown clutching the Papyrus Scepter, the amulet would contain a green stone and served as a fertility charm. This amulet was usually placed on the throat or on the chest in row of gods.