Group of stereoview photographs documenting the diamond mining industry of Kimberley, South Africa, one of the most important diamond-producing regions in the world during the late nineteenth and early twentieth centuries. The images include dramatic views across the massive Kimberley Mine pit, interior scenes showing the sorting of rough diamonds, and miners posed beside ore carts emerging from tunnel entrances. Additional views depict large mining encampments, worker housing compounds, and wide panoramas of the mining district showing the scale of excavation and industrial activity. Several stereographs are published by Keystone View Company and Underwood & Underwood, both major stereographic publishers known for educational documentary series illustrating industry and world geography. These photographs form a visual record of the global diamond trade during its most active expansion period. The stereoscopic format allowed viewers to experience the immense scale of the mining operations in three dimensions, making such industrial subjects popular in educational and geographic stereograph sets.