Made by Cube 4 You (C4U), 2009.
(plastic, 3.5" between opposite faces, 4.2" between farthest points)

An even larger version of the Megaminx than the Gigaminx: twelve sides of distinct colors each have three layers that can be rotated.

On opposite sides the colors are:

white (with C4U logo in center) opposite brown
yellow opposite aqua
blue opposite light blue
purple opposite pink
light green opposite dark green
orange opposite red