black nail art with silver gradient picture style from 2015

Quick answer：

Black nail art with a silver gradient design became popular in 2015. This style involves applying a silver nail polish over a black base, creating a gradient effect. It is a fashionable and chic look that combines the elegance of black with the shimmer of silver. Techniques to achieve this style include using a sponge to blend the two colors, creating a smooth transition from black to silver.