The title does not require the placement of this rhombus in the coordinate system, so we can let its center as the coordinate origin, the four vertices are on the coordinate axis.
I, first draw the coordinate system, according to the three-dimensional space drawing, the y-axis and x-axis angle of 45 degrees, the y-axis unit length is equivalent to the x-axis √2/2 ≈ 0.7;.
II, take the points B(-2√3,0), D(2√3,0) on the x-axis, and take the points A(0,2), C(0,-2) on the y-axis;
III, connect AB, BC, CD, DA in turn, then the quadrilateral ABCD is the required.