Handmade, natural product Stone: Red Tiger Iron Jasper Metal: 925 Solid Sterling Silver. Tigers Jasper is thought to be good for general non specific aches and pains. It is thought to be beneficial in treating disorders arising from the deterioration of the kidneys, spleen, liver, bladder and stomach and to help in balancing the mineral content of the body. Birds Eye Jasper, like all Jaspers, is a sustaining stone.