The Mall is the place with biggest variety of items for your outfit. Browse through the countless options and buy whatever suits your style. Keep in mind that each purchase will not only grant you beautiful items, but also Fashion Points that you use for increasing your Popularity Statistics.
In The Boutique you can draw Limited Collections that have already been part of the game as limited collections. Once you get the collections you can browse them and decide whether you want to unlock it for shopping or not. Unlocking the first collection of the three is free, second unlock costs Emeralds and the third one costs Diamonds. Each week you have the chance to draw 3 random Collections. If you are not satisfied by the randomly selected collections, you can use Diamonds and draw new ones.