Estee Lauder Violet Underground #1 is a warm fuchsia with a frost finish that is limited edition and retails for $21.00. In comparison, Natasha Denona Viola (136M) is a cool berry with a pearl finish that is discontinued and retails for $29.00.
Natasha Denona Viola (136M) is 90% similar — it is darker, more muted, warmer.