Whether you're concerned about conflict diamonds, cost is an issue or you simply don't want a typical engagement ring, there are lots of unique choices that reflect the style of brides-to-be and their mates. Picking up just any diamond at a jewelry store may be problematic if you're concerned about the environment and supporting civil wars and political strife in countries such as the Sudan. Profits from the harvest of these natural resources may fund a warlord's efforts or a corrupt government. However, the good news is that many retailers offer an array of conflict-free diamonds. All you have to do is ask. If you're serious about making as little of an environmental impact as possible, then why not consider a ring constructed of alternative metals or even wood?