Essie Naughty Nautical is a cool teal with a pearl finish that is limited edition and retails for $8.00. In comparison, Christian Louboutin Beaute Ni Toi Ni Moi is a warm teal with a cream finish that is permanent and retails for $50.00.
Christian Louboutin Beaute Ni Toi Ni Moi is 80% similar — it is less shimmery, darker, more muted.