It is reported that these types of diamonds are mainly mined from the war-torn areas of Africa.
It is really important to make sure that you are purchasing a conflict-free diamond ring so that you do not support any of the criminal activities. In fact, taking parts in any deals that are associated with a conflict diamond ring is illegal in most parts of the world, including the United States. So, try to shop only at diamond ring retailers who guarantee to sell ethical diamond rings that are certified by the Kimberly process, which is a certification program that plays a major role in preventing the trade of conflict diamond rings.
Similarly, avoid purchasing diamonds that are mined from conflict-prone areas such as Angola, Liberia, Zimbabwe, Côte d'Ivoire, Democratic Republic of Congo, etc. Instead, shop a conflict-free diamond ring from retailers who sell diamonds that are mined from the areas where the environmental standards are met and human rights are protected like Canada, Namibia, Botswana, etc.