MAC Prrrplexing is a cool teal with a sparkle finish that is limited edition and retails for $22.00. In comparison, Estee Lauder Charred Emerald is a cool teal with a metallic finish that is limited edition and retails for $45.00.
Estee Lauder Charred Emerald is 80% similar — it is less shimmery, darker, cooler.