You need a square piece of paper. The color side is at the bottom. First fold in diagonal half of the paper. Crease well. Unfold the paper. Now fold the same to the other side. Now fold the paper in half. Crease well. Unfold the paper. Then do the same to the other side. Fold the paper into a triangle. Take the part at the end to fold over to make a diamond. Crease well. Turn the paper over. Do the same to this side. This is the outcome of the square base. Final!!