NABLA Cosmetics Delirium is a warm purple with a sparkle finish that is permanent in palette and retails for $8.00. In comparison, Natasha Denona Rhodium (309DC) is a warm purple with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Rhodium (309DC) is 90% similar — it is less shimmery, lighter.