i need help trying to figure out if the ones i have are real, they were given to me from a lady to cleans dr.’s houses and they look real, they are carved in serial number on one side which says made in france ce 34399812, the other side says cartier paris 140 and carved in on the bridge also with the serial number. are these really light weight? thats really throwing me off! lol any help would be awesome as i need some cash and the lady who gave them to me i would like to give her some of the money if they r real. they r in really great condition as far as the gold has hardly any scratches or wear.