I make a lot of this type of quilts. I posted a pattern before using 5 inch squares although it is easy to change the size of the squares. Take a look at this link. I am in the process of making one right now for a customer and I am using a dark brown sashing and border. The squares are really showing up great.
Your quilt will be a real keepsake and a great conversation piece in her new employment.
Barb
http://www.quiltingboard.com/t-40739-1.htm