Glaminatrix Pixie is a cool duochrome with a metallic finish that is permanent and retails for $8.04. In comparison, Natasha Denona Palladian (465M) is a warm aqua with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Palladian (465M) is 80% similar — it is less shimmery, lighter, cooler.