In this video, Boston diamond dealer spends some time explaining techniques used to evaluate loose certified diamonds. In this case GIA certified loose cushion cut diamonds. There are a number of different methods that diamond professionals will employ to examine and grade diamonds. Some of those techniques diamond dealers are willing to share with clients, others they are not. Here Doug runs through a diamond examination procedure he uses with many clients so they are more familiar with diamond characteristics, and more prepared to know what to look for when shopping for loose diamonds or diamonds for engagement rings. The loose diamonds used in this video are all cushion cut diamonds.