Pink Coral, often referred to as Angel Skin. Comes in colors that range from white, pink and almost as red as the old Mediterranean corals often referred to as Ox Blood. These corals also come in browns, golds and rich blacks. corallium rubrum and corallium japonicum are a couple of varieties of coral that are used to make jewelry. Corals like these are still being collected off the coast of Japan, all through the Hawaiian Islands, Australia, the Mediterranean and many other oceans. Native American Artist signed with an A.