After a few e-mail exchanges, we came to the agreement that Beth would send me the yarn and I would knit her the scarf.
The yarn arrived and it is very soft. It is Lion Brand Superwash Merino Cashmere in the Parchment color way.
I increased the needle size and like the sample. Here is the scarf with five repeats of the cable pattern compared to the original scarf.
This project will be on the front burner until it is finished.