What it is: Long-lasting iridescent eye shadow. What it does: Diamond Eye Shadow is the marriage of two great MAKE UP FOR EVER products. It combines the subtle iridescence of Diamond Powder with the intense, long-lasting color of Eye Shadow for a spectacular finish. Nylon Powder helps the shadow glide on easily, while pure synthetic mother of pearl emphasizes each shade's color and intensity. Sephora is the exclusive beauty retailer for this product.