The term DIAMOND CENTER is composed of two words, MOUND and STONE. MOUND is a noun which refers to a raised area of land, usually round or oval in shape. It can be created naturally by the accumulation of soil and debris, or artificially by humans. STONE is a noun which refers to a hard, solid material made up of minerals, typically found in the ground. Together, these two words form the term DIAMOND CENTER, which is a place where diamonds are mined, cut, and polished.