I adored this necklace of my mom's when I was growing up. This is a fantastic piece designed by Elsa Perreti for Halston in the 1970s, and was filled with his solid perfume!
I did a little research on it (of course) and here is what I found out:
"It is the well known that Elsa Peretti designed for a few iconic fashion houses such as, Oscar de la Renta and Halston in the 70s. Her pieces are iconic. This piece is one of those creations. It is, as are many of her Halston designs, very similar to the best sellers she would do later for Tiffany & CO. The kidney bean pendant, although much smaller in scale, is still in production and being sold for several hundred dollars. Elsa's work possesses a simple, organic aesthetic. Thus, she has become known for timeless, understated pieces that are a favorite of the stars. Elsa was a model turned designer and her first client was Halston. This was his very first perfume."