In a certain way I even agree with the sentiment. Of the crystals I have grown myself, the perfect ones are kinda nice, but do look fake/more like plastic. Those that are nearly perfect but have visible impurities (not to much, not to little) are far more visually pleasing to me.

The big BUT is that this in no way is a reason to support blood diamonds. If aesthetic is more worthy to you than human rights, than you are a villain, it’s that simple.