Yes I think it is a rare Chanel one! by: Anonymous
It looks like vintage Chanel, there were many unsigned Chanel pieces waaay back. Now this brooch seems familiar & is very much like the one I saw one not too long ago on a vintage site as being valuable & rare but it’s the exact stone colors I can’t remember. I am pretty sure you have one mighty fine piece of authentic jewelery. Look up unsigned Chanel & try to describe it...it may be as a something xxxxx (fill in the blank) type of cross. Cheers!