The largest diamond ever found is 50 light-years away, in the Centaur constellation. This is the star “BPM37093,” a crystallized white dwarf, the final resting state of stars similar in dimension to the sun once all their helium and hydrogen has been consumed in nuclear reactions. In five billion years our sun will become a white dwarf, too, and another two billion years later it will die, becoming another gigantic diamond at the heart of our galaxy. No one will be able to see its pulsating light. Also, we will all be dead.