when shopping for a diamond the best way to get exactly what you are paying for is to purchase a GIA certified diamond. The price of a GIA certified diamond will be a little higher than a diamond certified by other certification companies such as EGL, AGS ,HRD and IGI but GIA has been more accurate in certifying diamonds. Jewelers know they can look at a GIA certification and trust what the certification read. So when buying ask for a GIA certified diamond you will pay more but you will know exactly what you are getting. This certification will also help when you get you diamond insured.