There are many different shapes in this quilt – triangles, squares, octagon, kites and diamonds. The diamond shape at the end of each star point has 4 equal sides like a square but not all 4 angles are equal. A common diamond shape has 2 sets of 30 degree angles and 2 sets of 60 degree angles. Most diamond shapes have at least two sides cut on the bias. This makes it more difficult to sew these shapes accurately.