A diffractive element (2) that comprises a set of rectangular grating pixels (1) with a grating structure of grating period (D) and grating tilt (a), whilst at least some grating pixels (1) have different grating period (D) and/or different grating tilt (a) and at least some grating pixels (1) are in direct contact with each other. The set of grating pixels (1) comprises grating pixels (1) generally of various dimensions (Lx) and (Ly), whilst the dimensions (Lx) and (Ly) of the grating pixels (1) with the same grating period (D) and the same grating tilt (a) are such that the lines of the grating structures of these adjacent grating pixels (1) with the same grating period (D) and the same grating tilt (a) continue on through their common boundary. Additionally, a method of creation of the diffractive element (2) is described herein.