Diagonally trim across collar and lapel points to help give them a sharper edge when turned. If interfacing has been stitched into the seam, trim it as close to the seam as possible. When grading seam allowances, the seam allowance closest to the outside of the garment should be the widest, and the seam allowance closest to your body the narrowest. Grading gives a flatter edge and helps prevent seam imprints after pressing. At the point where the lapel turns back and the facing becomes the right side of the garment, clip into the seam and reverse the grading so that the garment seam allowance is the widest.
Press seams to one side.
Those in the lapel area will be pressed toward the garment, the portion below the turn of the lapel will be pressed toward the facing. Complete Work on the Facing Turn the facing to the inside of the garment. Ease out the corners of the collar and lapels. Reverse direction at the lower edge of the roll line to turn the seam toward the facing. Tailor baste the facing edges for pressing to within 6 inches of the lower edge.