Beauty Nails Nail Art Know How: Center Part Welcome to #ManiMonday, a video series in which we show you how to create original nail art designs from a new pro every month. By Dianna Mazzone Dianna Mazzone Dianna Mazzone is a New York-based writer and editor who covers all things beauty, wellness, and celebrity. In addition to hosting a podcast, her works have been published in several national publications. InStyle's editorial guidelines Updated on July 17, 2017 @ 10:00AM Pin Share Tweet Email There's something about a center part that takes a look from so-so to sleek in seconds—and we're not just talking hair. This center-centric mani—designed by Casey Herman—will instantly up your cool-factor. To get the look, start with a clear base. Then, apply two coats of Dior nail polish in "Bleuette" (similar shades at dior.com). Next, dip a striper brush in Morgan Taylor nail polish in "Deja Blue" ($9; loxabeauty.com) and outline a half diamond on one side of the nail. Fill in the shape using the same polish and repeat on the other side, leaving a sliver of space in-between. Clean up the edges using your striper brush, and top it all off with a swipe of clear polish. Ta-da!