Guild Wars 2

The craft button on the UI screen is grayed out in the discovery tab for a sapphire orichalcum earring. I have the “This looks like something” icon, but cannot craft. My inventory is not full. Also, i’m level 400. Am i missing something obvious here?

You are indeed missing something.
Notice at your 2nd recipe item, you need more of those.
As far as I can see you have 1 and need 5.

Wow, that was actually obvious. Ok thanks for that.