This is an antique English silver necklace with natural baby pearls. It's a very old piece of jewelry. There are six hallmarks on the pendant's bail, which are small and difficult to read, but I can clearly see a leopard's head, the letter "N," and a lion passant hallmark. The chain clasp has a "STERLING" silver stamp and a lion passant hallmark. It's a stylish antique necklace that you don't often find these days.