NYX Cosmetics Diamond Sparkle Lipstick, Sparkling Walnut, 0.9 Ounce by NYX. $5.50. Long-lasting, smudge-proof color. Finish delivers diamond quality brightness, sparkle and shine. Mineral oils moisturize and condition. Velvet lipstick formulation that provides a luminous, shimmery finish. Mineral oils moisturize and condition. Long-lasting, smudge-proof color. Finish delivers diamond quality brightness, sparkle and shine.