The listing, cruise ship earring studs has ended.
These are not stamped. From researching these online. They are gold plated with real tanzanite stones.Tanzanite is a popular blue gemstone that is only produced commercially in one small area of northern Tanzania.Tanzanite is an extraordinary gemstone. It occurs in only one place worldwide. Its blue, surrounded by a fine hint of purple, is a wonderful colour. Thanks to its unusual aura and the help of the New York jeweller's Tiffany, it has rapidly become one of the most coveted gemstones in the world.