This is "Graciella" from Tatted Doilies by Iris Niebach. I didn't do the last round because I liked the look of the doily at that point as the 3 little thrown rings gave it an interesting look that makes it stand out from other doilies I've made. The colors are Lizabeth 642 Lilac Medium and 154 Wildflower Garden.
I've found that half the time I often don't do the final round(s) of a doily. Most of the time it's because I'm bored with it, it's the size I want or the colors aren't what I imagined. Other times, I choose to stop at the next to last round because I feel that the final round feels 'forced' and looks like a heavy border on what would otherwise be a light and airy doily. Am I the only one who feels that way?