An engagement ring having this kind of diamond, which is fairly mined from the Earth’s crust, is known as an ethical diamond ring. It is to be noted that diamonds are found in the Earth’s crust and on the ocean bed and are extracted by the process of pipe mining and alluvial mining respectively. However, if you are a conscientious person, it is better to stick with diamond engagement rings with the gemstones that are extracted via pipeline mining. In case of alluvial mining, some part of mining is done by the workers using their hands, without using any equipment, which is really a painstaking process. Usually, non-unionized workers are made to do this in unsafe conditions, which make it a troublesome issue as well. Besides the fact that the workers employed in alluvial mining have to endure a lot of physical pain, most of the workers are also not paid enough for their hard work. These facts strike out the use of diamonds extracted using alluvial mining in an ethical diamond ring.