I understand that with the stigma of African conflict diamonds, the world's supply must be getting lower. Canada is becoming a big resource for this precious gem. One of Husband's cousins got one for her 10th wedding anniversary. To my untrained eye, it looked massive and gorgeous! What I find interesting is that some diamonds seem to be like new cars. As soon as you drive that baby away from the store, its value plummets, while other antique or vintage ones become more valuable with age.