Black satin evening gown with crystal straps

I found a black satin evening gown this afternoon outside the Starbucks on Main Street in Cookeville. It's Calvin Klein, size M, with silver beading along the neckline and a small silver rhinestone star brooch pinned at the waist. The hem has a tiny snag and there's a faint makeup smudge on the left strap—nothing that can't be fixed. I really hope to get it back to its owner; this dress looks like it was meant for a special night. If this sounds like yours, describe the gown and the brooch to verify.