When searching for diamonds online, ensuring report accuracy needs to be the number one priority. This helps to determine how much value a diamond should really have and allows you to know exactly what you are purchasing. While most labs will produce diamond grading reports using the same criteria, some labs are strict and consistent, while others are loose and inconsistent. Choosing diamonds that have been graded by labs with strict standards is key to making an informed buying decision.
The four most popular reports come from the Gemological Institute of America (GIA), the American Gem Society (AGS), EGL USA, and the International Gemological Institute (IGI).
If you’re purchasing a diamond online, the GIA and AGS diamond grading reports are highly recommended. These two labs are the most accurate, consistent, and respected, and are also completely independent of any diamond sellers. They are the gold standard of the industry.,
For more help with interpreting diamond reports see our Diamond Grading Reports in diamond education