Want to know how to positively identify your diamond? Each diamond has its own unique birthmark that enables exact identification when comparing it to other diamonds. Have your jeweler show you how to identify your diamond by its birthmark. A certified gemologist can generate a plot and a photograph of your diamond which allows you to identify your diamond exactly. Before leaving your diamond for servicing, we suggest viewing it through a jeweler’s gem scope. When you pick it up again, view it a second time to re-verify its identification.