It is reported that Scott Disick, Kourtney Kardashian’s boyfriend of many years was spotted purchasing an engagement ring supposedly a 1.5 carat princess-cut diamond ring. Kourtney is the oldest Kardashian sister including Khloe and Kim. Khloe, the youngest, was married to Lamar Odom in September 2009. Kim was wed to Kris Humphries in August of 2011. Perhaps Kourtney is next!