I refer you to an article that articulates why diamonds are not Irish far better than I can. It's linked by the first article, but this Salon piece has some good history well worth reading.
When I heard an announcement for the movie Blood Diamond, I was immediately excited that someone was taking a Super Size Me style stance and documenting, in a format the average Joe will actually digest as opposed to "news", the truth about diamonds. Imagine my disappointment when I heard it has little to do with conflict diamonds, and is instead a fictional drama starring DiCrapio. My and my hopes for something to counter the damage done by Marilyn Monroe singing "Diamonds are a Girl's Best Friend" in Gentlemen Prefer Blondes...
Ladies, if you're hoping to receive a diamond from me, you had better be prepared to "settle" for an actual precious stone instead ;)