Sydney Grace Emerald Eyes is a cool teal with a metallic finish that is limited edition and retails for $6.25. In comparison, Natasha Denona Equilibrium (382M) is a cool teal with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Equilibrium (382M) is 90% similar — it is less shimmery, darker, warmer.