Industreis

                                      Diamond polishing

 Surat is a major hub of diamond cutting and polishing.^[29] Gujarati diamond cutters, emigrating from East Africa, established the industry in 1901 and, by the 1970s, Surat-based diamond cutters began exporting stones to the US for the first time. Surat is the largest diamond hub in the entire world. It is to believed that 9 out of 10 diamonds in Manhattan, New York, is from Surat. Major diamond polishing factories are in Varracha and Kataragam area. Most of the diamond business is dominated by people from Saurastra.^{[citation needed]} Surat is also called the Diamond city.^[30]