Sydney Grace Happy Accident is a cool lavender with a metallic finish that is permanent and retails for $6.25. In comparison, Natasha Denona Lavender/Gold and Silver (3) is a neutral lavender with a glitter finish that is permanent and retails for $28.00.
Natasha Denona Lavender/Gold and Silver (3) is 80% similar — it is less shimmery, lighter, warmer.