Scottish Agate Brooch/Pendant

We have for consideration a lovely little Scottish agate brooch / pendant. The brooch is unmarked, like so many of this type of brooch it could be silver, although it has not been tested. This lovely versatile piece has five agate stones surrounded by beautiful hammer detailing in the metal. On the back is a simple "C" clasp closure with a pendant ring. It looks like the pendant ring may have been added at a later date. Measures 1-1/4 x 1/2 inch. This really is a very nice Scottish piece to add to a collection.