It is a one piece, bottom-up trapezium with a lace collar. You can turn it into a cross-over top or a shrug by using 2 small buttons. I used the yarn-overs as button-holes. Any yarn and colour will be great for it. Gauge is unimportant.
My gauge: 4 sts x 4.5 rows (slightly felted)
Measurement lying flat:
Lace collar 3.5”
Many thanks to testers: elaineinplane and Yarn-dar
Note: You can sell your finished item.