Large Art Deco green stone locket

This is an exceptional piece! It is done in goldtone metal and has a heavy link type chain, which measures around 23 in. The locket measures 2 1/2in. X 1 3/4 in. The center jewel is of some green semi-precious faceted stone, and measures almost 1 in. X 1 1/2 in., and is surrounded by four small green stones. It opens up to reveal the inner chamber with the original green foil lined compartments for photos. There are dark areas around the smaller stones, so I'm not sure if that is due to age or manufacturing. But all in all this is a fabulous piece! Enjoy!!