Vintage Necklace And Size 8.5 Ring

Disclosure: I do not know if the ring and the pendant are from the same maker. Vintage pendant necklace featuring rhinestones in gold tone and what appears to be opals? The ring is size 8.5, vintage, and it has a U with an arrow through it which is Uncas. It is gold tone with Vanderbuilt faux diamonds and visible opal stones. The ring and the necklace really do match together nicely, but I don’t know if they are from the same maker, because the pendant is not signed, and the white stones don’t seem as opalescent as the ring. Chain is 18”. Please see photos as they are part of the description. Thank you for looking!