If those are not reason enough to avoid them, diamonds are frequently used by rebel groups to fund conflicts and civil wars, and by terrorist groups to finance their activities.
And the Kimberley Process, an agreement under which diamond companies are supposed to self-police themselves to prevent these "conflict" diamonds from entering the market, is little more than a PR stunt.
An internal review in Brazil showed that one-third of Kimberley Process certificates are fraudulent.
The diamond industry also often hurts children, such as the children in India who are forced to work to pay off the debts of their family, and the children in diamond-funded conflict zones being used as soldiers.
From time to time, I enjoy sharing stories with you like the stay-at-home mom myth or the real problems with wearing a bicycle helmet that offer counter-cultural perspectives you may not easily find anywhere else. While they aren't specifically addressing health, they are fraudulent scams and they do impact important areas of your life.
Along that vein you may want to pay close attention to this latest expose of diamonds from the Web site, Wise Bread.
This interesting story details the myths surrounding the true value of diamonds, arguing they aren't as precious or rare as you might believe. Besides, if diamonds were really valuable, wouldn't jewelers buy them from consumers at a premium, instead of a fraction of what you may have paid?
And of course, one more variable to consider when thinking about diamonds is all the bloodshed, war and terrorism waged in Africa and paid for by those shiny little rocks as described in the recent movie, Blood Diamond, about the conflicts in Sierra Leone.
On Vital Votes, reader Maja from Stuart, Florida reveals: