In order to grade diamonds while employed at a diamond grading laboratory you must have studied at GIA the Gemological Institute of America and be a Graduate Gemologist or otherwise known as a G.G. Almost all Diamonds available at Andrews Jewelers have been graded and certified by either the GIA, AGSL the American Gem Society Laboratories, or EGL the European Gemological Laboratories. These grading laboratories are considered to be the world's foremost authorities on diamond grading and gemological services.
Andrews Jewelers will partner with only the most creditable grading laboratories, ones that carry and honor the highest ethics and integrity in the jewelry industry.
A diamond certificate will include important diamond characteristics such as color, clarity, carat weight, proportions, and cut. The diamond is evaluated using gemological equipment including tools like a jeweler's loupe, microscope, colorimeter, and millimeter gauge to name a few. Diamonds submitted for certification are normally examined by a minimum of four highly trained and experienced diamond graders and gemologists. As the diamond moves through the grading process senior graders examine the diamond grades for accuracy.
Once the diamond analysis has been completed the grading report is sent to a computer file and serial number for identification purposes is permanently saved for future reference. a tamper proof certificate is printed and signed by the staff gemologists. In many cases the serial# of the grading report is laser inscribed on the girdle of the diamond and can only be seen under 30x's magnification. This prevents certification forgery from occurring and it also provides permanent identification so in the event that your diamond engagement ring is lost or stolen you can prove that the diamond belongs to you.