Just ideas and links.

 * http://cosplayfu.com/product/School+Girl+Uniform+from+Guilty+Crown
 * http://item.taobao.com/item.htm?spm=1103Qzx8.3-3qDB7.h-1Il1qO&id=13013565227&
 * Type-2 variant http://item.taobao.com/item.htm?spm=1103Qzx8.3-3qDB7.h-1Il1qO&id=15104528129&