As fortunate1 posted, it also looks like Star stitch to me. However, you can just crochet a long strip in whatever stitch you like; then watch some videos that show you how to sew it together to make the center twist. FYI...clicked on the Etsy link that marilyngf posted and happened to read the comments on the page. One mentioned the Trinity stitch; so perhaps that's the stitch that was used. Anyway, here is a video that may help in making it. You can scroll the YouTube side bar and find other similar headbands.
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