The Neon Diamond cowl is knitted in the round as a tube, twisted, and then fastened together using kitchener stitch.
Gauge

On 4mm needles 6 sts and 6 rows to 1 inch over colourwork pattern worked in the round.

Two (2) 16” US 6 (4.00mm) circular needles
Crochet hook (optional for provisional cast on)
Stitch Marker
Yarn Needle

Approximately 680 yards of DK weight yarn (Photographed cowl is made out of 6 skeins of Koigu’s Kersti Merino Crepe, 3 skeins of MC, and 1 skein each of three CCs.)