[luatex] problem with chinese characrter

[Haines Brown via luatex]

Albatross says the glyph for Unicode 14264 (round form of 囍,
double happiness) is available in the KaiTi font. But following 
snippet fails to disiplay it.

  \documentclass[12pt]{article}
  \usepackage{polyglossia}
    \setdefaultlanguage{english}
  \usepackage{luatexja-fontspec}
  \newfontfamily\Chinese{KaiTi}

  \begin{document}

        \symbol{"1F264}

\end{document}

-- 

     Haines Brown