ColourPop Something Special is a warm plum with a sparkle finish that is limited edition and retails for $4.50. In comparison, Natasha Denona Stark (335M) is a warm burgundy with a pearl finish that is permanent in palette and retails for $29.00.
Natasha Denona Stark (335M) is 80% similar — it is less shimmery, darker, more muted.
