I am hooked on triangles so I saw the triangles in this. The cube is made up of diamonds that are 2 60* triangles sewn together. 1 triangle has a black bottom half and the other has a white bottom half. Three diamonds are put together to form the 'center point' of the cube. Then additional diamonds are placed around to form what looks like windows. Hope that was clearer than mud~~
I think it is the attic window block done in 3 sections to make a cube. Here is the link:
http://www.quilterscache.com/A/AtticWindowsBlock.html
The attic window block is a square. You need a diamond.