The look just like the regular pearl guineas, just larger. They only come in one color, unless that has recently changed. I believe my hen, Mousse, was a French. She was so much larger than the others.
Here she was with the lavenders and as an adult.
I actualy tryed to order them last year but they were sold out. I then contacted a breeder friend of mine and he hatched me out 20 keets. 10 for me and 10 for a friend. I would like to get some French guineas, b/c they are supposed to be larger and have a longer laying season than the normal guineas. However, for the moment I'm hatching out my own.