Diamond mining frequently occurs in areas where there are conflicts and violations of human rights, such as in countries with oppressive governments or regions experiencing civil wars. In these situations, diamond mining can be used to finance and sustain the conflicts, and the proceeds from the sale of diamonds are often used to buy weapons and other resources that contribute to the violence.

Diamond mining also often has negative effects on the environment and local communities. The extraction of large quantities of earth and rock often results in habitat destruction and the displacement of local communities. The mining process can also lead to soil and water contamination, which can harm the health and well-being of people living in the area.

Another ethical concern is the treatment of workers. Miners are often paid very low wages or not provided with adequate safety equipment or training, leading to accidents and injuries. The diamond industry has also been criticized for its lack of transparency, making it hard for consumers to verify that the diamonds they are buying are ethically sourced.