Anastasia Seaside is a cool lavender with a metallic finish that is limited edition and retails for $12.00. 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 90% similar — it is more shimmery, lighter, warmer.