Raised knit column??

Hi all

I’m trying to replicate this diamond pattern - see pic.

I can figure out the diamond section but I’m confused at how to get the raised knit column in the middle.

Can any master knitter help me,
my eyes are tired scouring through million images on Google.

Thanking you in advance

Don’t know for sure, but probably a slipped stitch. Try a swatch.

Likely it’s a center double decrease, balancing out the increases from the two yarn overs. The bulk of the stitch would allow it to stand out like that.

I didn’t think of that! Good thought!

Thank you so much, I appreciate your replies.