I found that when I sold diamonds on New Tokyo, it still kicked me. I was able to sell them at Roponggi station, however, for around $500. I'm not a trader any more, so it's not too big a deal. I hope it gets fixed though.
I go by abbamouse, but my characters are the Cryer researcher Daniel Moss, the very boring and ordinary trader John Smith, the borderline-insane civilian Mr Joker, and a Bundschuh activist who goes by the alias Rosa Luxemburg. I am not them and they are not me.