According to history, the birth place of diamonds is ancient India. Diamond is a wonderful gem. They are used in ornaments. At present Surat is biggest diamond city in the world. Out of total diamonds in the world 42 % rough diamond cutting and polishing here, 70% of the nation's total rough diamond cutting and polishing at Surat city. Diamond broking profession is an unorganized sector in India. This book represents the importance of the diamond industry as on social and economic review with reference to diamond brokers of Surat and Ahmedabad (Gujarat-India). This book also includes the personal information, social information, educational information, migration status, employment and work-related information, saving, expenditure, income, living style, health related problems, training in this profession, previous business information etc. This book includes the analysis of diamond brokers of Surat city, the analysis of diamond brokers of Ahmedabad city and a comparative study of the data of diamond brokers from both cities and also consists the testing of hypothesis and correlations of various variables.