Congratulations are in order for Angelina Jolie and Brad Pitt who are apparently engaged, or so we assume by the giant diamond sitting on Jolie’s left ring finger.  Why do we care? The diamond is apparently conflict free. Jeweler Robert Procop, who designed the ring, trades exclusively with countries that belong to the Kimberley Process Certification Scheme, a process to prevent “blood diamonds” from entering the rough-diamond market.  Click ahead to read more about the ring and other pieces that Jolie has had made from “reputable sources”.