Vintage Aurora Borealis Brooch, Necklace and Earrings Set

Gorgeous vintage aurora borealis brooch with beautiful stones in wreath like setting in gold tone metal. Accompanied by matching clip back earrings. Includes a gold tone metal chain. Cannot find stamps on the items. Unsure if chain is part of the original set. This beautiful aurora borealis set comes in a vintage box (has some stains, see photos) - unsure if this is the original box, but it is complete in the way that I acquired it from the original owner. Very similar to Coro brand items.