Good Day Khan,
There are so many different aspects of what the Hamsa or hand of Fatima means I thought you might enjoy this link. (admin edit - see Posting Requirements )
This appears to be the Arabic form although your images are rather fuzzy. Since this appears to be a pendant can you please reshoot the hand with the fingers facing down.
Now, made in the Middle East such as Morocco or Algeria? The make your showing appears to be a French makers mark in a logenze or diamond. Made by Muslim craftsmen under French supervision? Made in France then exported?
You may also find two other marks, one is also on the back and would be referred to as a bigorne. Please research the term here. The other is a French hallmark which would literally be on the opposite side from the bigorne.
I hope you don't find this too confusing. Have a few of these pieces myself, still trying to determine their history.