I found some cambon bags and they all seem to have the diamond sticthing on soft leather - is that what a Cambon style is?

Here's some examples:

http://bagbunch.com/chanel-pink-and-black-bowling-bag-cute-cambon-leather-handbag/

http://www.elluxury4u.com/chcalismblto2.html

http://www.6pm.com/n/p/p/7240793.html

http://www.ioffer.com/i/Chanel-Cambon-Bag-Black-amp-White-CC-NWT-35946251

http://www.stylevixxen.coolbuild.com/i//tn_chanel_tan_large_tote.JPG