No, anyone can purchase. It's available off and on on-line, and should be in stores in August
This mirror was available to everyone today (7/16) at about noon - not just VIB. As a VIB, I didn't even receive an email about its release. I just happened to check Facebook at the right time. So unfortunately, to answer what you're really asking - it appears to already have sold out online. I don't know if they'll restock it or not. I don't believe they did with Cinderella or Jasmine.