Natasha Denona Aerialist (371SM) is a neutral lavender with a metallic finish that is limited edition and retails for $29.00. In comparison, Giorgio Armani Blue Reflection (32) is a warm lavender with a glitter finish that is discontinued and retails for $39.00.
Giorgio Armani Blue Reflection (32) is 80% similar — it is less shimmery, darker, warmer.