Sydney Grace Flirty (Light) is a warm pink with a metallic finish that is permanent in palette and retails for $6.25. In comparison, Natasha Denona Pixie (304M) is a warm pink with a pearl finish that is permanent in palette and retails for $29.00.
Natasha Denona Pixie (304M) is 90% similar — it is less shimmery, warmer.