Vintage Uncas adjustable pearl ring

Beautiful mid century adjustable gold tone and faux pearl ring. Piece is stamped with Uncas stamp on the inside. Ring face is about the size of a nickel, sits 1/2” up from the ring base and is quite heavy. Best guess this could be adjusted from a size 6 through a 10. Very fun and funky Art Deco style ring from the 1950s. Please see photos for the two marks on the face of the ring. One is glue, which I am uncomfortable trying to remove. The second is a dent and scratch on the bauble.