Vintage necklace crystals, and a green stone 18 inches

This is necklace 18 inches with beautiful crystal beads lots of floor lock with a green stone that has a green to it. I’m not sure if it’s Light or some type of Jade so I’m pricing it as regular custom jewelry and if it’s something more value all the better for you, it is in person. I think it’s a real stone because you wouldn’t see all of these different coloration.