So there's a downside to diamonds. There's a downside to dang near everything.I would certainly agree if every item of trade required such a ridiculous amount of exploitation and violence. 20% of the entire trade is illicit and the market fuels warfare in Africa. Some of the externalizations of our consumerism is not really an acceptable thing, and the overall affect on society is lessened, not cultivated.
Is this worse than others? Energy cost is low. Violence is less than oil dependent luxuries.
They're less dangerous to wear in public than than fur. And they're not fattening.