Aluminum Foil Folds and Cut

Your task is to convert a diamond shape monomino that is made from aluminum foil into an x-shape pentomino (see figures). You may fold the monomino and make one straight cut with a pair of scissors. After the cut, you will unfold the foil and align the separate pieces. The alignment should produce the X-shape shown above, using all pieces of the original monomino. How can this be done without any additional tools?

Note: No overlapping and pieces can be flipped but not need to be attached or joined.