Sparkly Faceted Crystal Cross

This is a beautiful faceted crystal cross on a silver tone chain measuring 16". The crystal is light pink with a clear piece in the center. It sparkles so beautifully due to cut of the crystal. Really beautiful! There is a marking on the back which I wasn't able to read as well as the letter "A". It's not sterling silver (I tested it with a magnet) so I really don't know what the marking means.