Beautiful vintage sparkly aurora borealis brooch with adjustable pin back

This gorgeous vintage brooch came from an estate sale where someone collected peacock decor of all types and a peacock is what the brooch reminds me of. It's gold toned with beautiful dark aurora borealis faceted glass stones. They flash blue, purple and green and sparkle even in low light. The secure pin back adjusts so the brooch can be worn at different angles. There was one matching clip earring that came with the brooch that I am including.