Smiling Diamonds Lace pattern
Worked over a multiple of 12 stitches plus 1.
The chart for Smiling Diamonds Lace can be found at the end of this pattern. While it's always a good idea to swatch small lace panel insertions to be sure you like the way they look in your yarn choice, a small panel of this stitch pattern should not be different enough in gauge from Stockinette stitch to adversely affect the size of your sweater.