- Orapa is a city located in the Central District of Botswana. It is known for being the site of the world's largest diamond mine, Orapa Diamond Mine. The city was established in the 1970s to support the mining operations in the area. Orapa is home to a significant population of mine workers and their families, and it has developed into a thriving community with schools, shops, and other amenities. The diamond mining industry plays a major role in the local economy, providing employment and contributing to the country's overall economic growth. Despite its economic significance, Orapa remains a relatively small and quiet city compared to other major urban centers in the country.