The side shots of the stones are more important than the tops. For instance, La Petite Blanche are probably the easiest to recognize as they are almost always combo stones, and they carry a purple line parallel with the BBW backing. You might want to check this helpful thread on coticule.be that helps with some stone identifiers, http://coticule.be/the-cafeteria/topic/1727.html
Thanks,Ill check it, just for reference, if I want to try to score some from ebay, or antique shops etc.. As for the one I have, its definitely LV, no need to check up on it..