My white Chanel caviar bowler I had turned a slight yellow and I only carried it for a few months, when I wore white you could really see the yellow color that is why I am very weary of buying any white Chanel handbags. I think I will stick with the darker colors.
I don't like patent especially white because they usually turn yellow after a while... e.g. LV vernis bags... that usually happen in a year or two... depends on usage and exposure to sun