507 carat Diamond from Cullinan

A 507-carat colorless diamond is nothing to sneeze at, even through a miner’s respirator. But add to that three other crystals from the same production run, weighing 168, 58.5, and 53.3 carats, and, well, you wonder whether Superman might not have relocated from Gotham to Pretoria. The 100-gram crystal was discovered September 24 at the Cullinan mine operated by Petra Diamonds, according to Mining Weekly. Der Spiegel has posted video that catches it from all the angles.