ColourPop On the Edge is a warm pink with a sparkle finish that is permanent in palette and retails for $4.50. In comparison, ColourPop Estrella (She's Got Solstice) is a warm pink with a frost finish that is limited edition and retails for $4.50.
ColourPop Estrella (She's Got Solstice) is 85% similar — it is more shimmery, darker, warmer.