Opi cool britannia the royal collectioncreate a right royal look with these four stunning colours one collection put together exclusively by the team beauty expert to celebrate the marriage of prince william and catherinecool britannia the royal collection featuresdating a royal a royal blue that sets crowds spinningprincesses rule a bright sparkly pink thats tiara worthyroyal flush blush all girl pink pearl deal with itroyal rajah ruby jewelled burgundy befitting a princ