Natasha Denona Vintage (49M) (2019) is a warm taupe with a metallic finish that is permanent in palette and retails for $29.00. In comparison, Sydney Grace Devotion (Deep) is a warm taupe with a metallic finish that is permanent in palette and retails for $6.25.
Sydney Grace Devotion (Deep) is 80% similar — it is more shimmery, lighter, warmer.