They listen intently and then eventually say, "They are using overpriced materials. Considering their craft..." 
Kiaane trails off, perhaps trying to think of better alternatives. Maybe the materials they're personally thinking of are rare? No, they aren't. So maybe they're less known among professional creators. Or maybe there's something lacking in their knowledge? They can't think of the gaps that might exist at the moment.
Yay, more awkward silence to patch.

Sounds sus, not gonna lie.
They center their gaze again, having let their sight wander to the side while thinking. But they're still thinking, so they don't do as good of a job on centering it as before. 
"To be clear," they say, using a transition for once, "there is little problem with the...currency amount. But there exists a value problem." They finally pick the amulet back up to do what she requested a little prior--take out whatever magic they inserted, that is. This time, they're with enough common sense to turn it away from her so she doesn't have to see the process.  
"This material is better used for magic that needs not conductivity," they state as they finish the process and put the amulet back, gingerly, into the box. They're trying to sound a little apologetic, but it is Not Working. They're honestly already trying their hardest. 
"...is it possible to relay a message?" they ask, a conclusion of sorts. 

("her" xD)

They nod to indicate their understanding.
"Will return with a letter," they tell her, apparently heading out now. Guess they don't want to risk making a paper with their magic and triggering all the alarms in the vicinity.
Wait, Kiaane, you're messing up the order of things to do,,,