Start with two even coats of gold nail polish. We used Dolce & Gabbana's Nail Lacquer in Desert ($24; sephora.com), a shimmery bronze.
Cut off a corner from a foam makeup sponge, and use it to dab an orange hue like CoverGirl's Flamed Out ($4; covergirl.com for locations) from the middle to the tip, with heavier coverage as you work your way upwards.
Using the same method, dab a red shade like CoverGirl's Rogue Red ($4; covergirl.com for locations) from the halfway point of the orange gradient to the tip. Finish with a generous amount of clear top coat.