Who is this white-haired girl figurine wearing a black-and-white grid skirt? What anime is this character from? Or what is their name?
It is a Nendoroid of Miss Monochrome, see https://en.m.wikipedia.org/wiki/Miss_Monochrome, which was an original character that was a 3D virtual singer, though she has since appeared in her own anime also named Miss Monochrome.