Illamasqua Poke is a warm purple with a frost finish that is permanent and retails for $17.00. In comparison, Guerlain Nuit Merveilleuse (903) is a cool purple with a pearl finish that is limited edition and retails for $26.00.
Guerlain Nuit Merveilleuse (903) is 90% similar — it is darker, more muted.