1. Prep your nails. "After you've removed your old polish, push back (don't cut!) your cuticles, nip any hangnails away, and apply a basecoat so that your polish won't chip as easily," says Whitehill.
2. Coat your nails with a gold glitter lacquer. "You can choose one coat or two, depending on how bold you want the shimmer to be," she adds. Amy Odell, Cosmopolitan.com's editor chose to apply one coat of Butter London's The 444 gold glitter polish to her nails.
3. Add black polish to the corner of a makeup sponge. "When you're painting black (or any color of) polish onto a makeup wedge, make sure the pores of the sponge are visible — that way you'll get that soft, just-the-right-amount-of-paint type of finish," Whitehill explains. "Otherwise, you'll end up with too much polish on the sponge and on your nail."
4. Create an ombré effect. "Gently dab the black paint that's on the corner of the sponge onto the tip of your nail (you want it to be the darkest part of the nail)," Whitehill suggests. Then slowly move the sponge down toward your cuticle, using the same patting effect, to get that gradated appearance," she says.
5. Layer on a top coat. Sealing your color in with your favorite top coat prevents it from chipping early and gives your manicure that glassy finish.
6. Make your friends jealous with your mani. Go ahead, you earned your bragging rights, because you, my friend, just DIY'd the Nicole Miller ombré mani.