Knock the other debs out of the ball(park) with rich shades of lacquered plum and navy shadow. Try cream formulas, or swipe Vaseline over powder for extra luster.
On hair: L'Oréal Professional Mythic Oil Reinforcing Milk. On face: Clarins Colour Accents Powder and Blush. On eyes: Laura Mercier Caviar Stick Eye Colour in Amethyst.
Bustier, $3,300, Dior; bracelet, price upon request, Tiffany & Co.