I love cables. Colored cables are even more fun and working them on the diagonal adds some interest to a project.
To make this as pictured, you'll need 3-4 balls of the main color yarn, one ball for the background of the diagonal panel, and partial balls of 2-4 more colors.
Depending on how many colors you decide to use, you could be working with up to 7 strands for most of the project.
The pattern includes written instructions for the beginning and ending corners, a chart for the cable, and charts for each corner.
24 stitch and 32 rows = 4 inches (10 cm) in stockinette on US 7 (4.5 mm) needles
1200 yards of DK weight