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