To make this pillow I cut 45 degree diamonds using 2.5" strips the WOF (width of fabric).
Sew your fabrics together in a stair-step pattern. Line up the 45 degree line of your ruler along the bottom edge to make sure everything lines up as you add new strips. I prefer to press my seams open.
After all the strips are sewn together, make the first cut. Position the 45 degree line of the ruler along the bottom edge. Trim off the outer triangles to even up your edge.
Now to cut the diamond strips flip your ruler around and line the 45 degree mark up with the top edge of the fabric. Then line up the cut edge of the fabric with the 2.5" mark on the ruler ruler. (For these diamonds I am using 2.5" strips WOF. When cutting the diamond strips, they will also be 2.5". Cut this strip width according to your fabric height.)
After cutting all the strips, start piecing your rows. Remember when piecing the strips that your seams must be offset. If you match your seams as you would in traditional piecing, your diamonds will not line up. Offset the seams so they will intersect right at your 1/4" seam allowance. (I forgot to take a picture of this step. You can check out the tutorial from Urban Patchwork to get a better idea of how much to offset them.)
I've added lines on this picture to show how I pieced it. I first pieced the four whole rows. Then I added the partial rows to square up the design. I unpicked the top diamonds from the partial strips. I continued adding whole rows to the right side until my piece measured larger than 20" for my pillow width.
- Don't be afraid to unpick. It's hard to get those points perfect.
- Drop your stitch length down just a bit. It helps hold the seams once you cut the diamond strips. I normally use a 2.0 on my machine and used 1.8 on these.
- Double check everything before cutting. Precision in cutting is really important.
- Use a 1/4" foot with a guide. It will help a lot.
- Pin at every intersection. If sewing with larger diamonds, pin in between the intersections as well.
- As with anything sewn on the bias, be careful not to stretch it too much.
- If you are making a larger project and will be repeating this process with multiple fabrics, make sure you ALWAYS piece and cut your diamond strips the same way. (I've already made this mistake on my Innocent Crush quilt. It doesn't work.)
- Pressing seams open will reduce the bulk at your intersections.
Let me know if you have any questions or if something isn't clear. Diamonds really aren't as bad as I thought, and they look so classy with almost anything. This technique makes it easier and a lot less stressful. Give it a try!