Victorian Era Black Enamel Heart Locket with Loose Diamonds Necklace

Victorian Era Black Enamel & Rock Crystal Heart Locket with Loose Diamonds. Nearly 2 carats of loose white facetted diamonds. This locket would have originally held a lock of hair or painted portrait.  The locket dates to the mid 1800's and is English in origin, found in London. Hangs on a modern gold chain. 

1" drop from chain. Chain is 14k Gold and measures 16".