<human>: I bought my g/f a band a while back and went to have the center area sized so that I could order the best fitting, nicest moisonnitte I could find. Most sites said they were pretty colorless and they all seemed to be around $300 for what would be about 1 carat size.

Well.. the jeweler told me that could order them and get it for $250, I said multiple times I was getting a mous so I Could get a nicer one and not a crappy diamond for the money I had. So I told them to order it and they could also set it.

They charged $250 for the stone and $150 to set it. I rushed in during lunch today and signed for it. I basically just signed a small receipt to say I physically picked it up (Looking back I shouldn't have). I pointed out the prong being off and she just said it looked okay, but being dumb and in a hurry I left.

As soon as I got outside I noticed that it looked very yellow and was set awfully. One prong is visibly way off.
They said special orders (they ordered the moisonitte) don't get refunds and they offered to fix the setting but I don't trust them now to mess with the prongs again.
Is there anything I can do besides negative publicity? Or am I just out $400

My biggest idea so far is to calmly threaten a media spree. Writing papers, reviews, etc.. with pictures and a story.

Condense the text into a few key points
<bot>: I was slightly mislead about the moisonitte color and overpaid for a terrible set job, they offer only resetting and $0 back for anything. Am I out of luck?