Can diamonds burn? June 13, 2012 by Pamela Landy · Filed Under: Science Yes, if you heat them to somewhere between 1,400 to 1,607 degrees Fahrenheit, diamonds will burn. A blowtorch will do the trick. Diamonds are composed of pure carbon and will convert into graphite under such temperatures. Related PostsWho said, “Ask not what your country can do for you; ask what you can do for your country”?How far can a U.S. Army Pershing missile travel?How fast can a turkey run?How far can a kangaroo jump?How fast can birds fly?