Vintage Holo Mirrored Rainbow Cameo Necklace

Unfortunately I just wasn't able to capture with my camera how colorful it reflects. I can see rusty orange, teal blue, indigo, purple, and lime green. The cameo itself is mounted on a gold tone brooch backing with convertible pendant clip. It is on a gold tone chain currently that measures approximately 18 inches long. There is one small fault I need to mention, there are a couple of spots on the mirrored backing that are worn and do show in some light through the front. Quite Small.