Elegant and simple statement necklace set

This set is beautiful and sparkly in person. The pictures do not do it justice. I bought this back in the late 80’s for an event and have only worn a couple of times. The necklace is structured and will lay flat. Necklace is a good weight and not light. The earrings are 1 1/2” in length. No missing stone or damage. No idea the brand name or where purchased.