Recent improvements in the implementation of the technique make Raman spectroscopic imaging possible. Different systems have been developed to reduce recording and display times to reasonable levels.In this study, we have performed Raman imaging measurements for different HPHT or CVD diamond samples, and some test experiments will be presented. Results were qualitatively interpreted in terms of residual strain fields or variations in defect concentration in the different growth sectors. They illustrate the potential of Raman mapping or imaging for revealing the detail structure of diamond crystals or films.