This icon is a part of a collection of Crown flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality.
Idea of Crown Icon by Andrew Webb
We've received the idea on September 04, 2013 and created the icons on September 11, 2013
Either a regular crown by itself similar to this one , or perhaps a user wearing a crown. These could be used to show a import-level user.