LORAC Silver Mauve is a warm taupe with a frost finish that is permanent in palette and retails for $19.00. In comparison, Natasha Denona Vintage (49M) (2019) is a warm taupe with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Vintage (49M) (2019) is 85% similar — it is more shimmery, darker.