An appraisal of a diamond is different than a certified diamond. However, they are not mutually exclusive, and a diamond that has an appraisal can also be a certified diamond. The appraised value of a diamond is one that has been assigned to the diamond in the event that the stone needs to be replaced. In other words, it is a slightly inflated retail value and only reflects the retail value of your diamond, not the resale value. Appraisals usually contain a dollar value as well as the characteristics of your diamond.
A diamond certification is something else entirely and may also be called a grading report. This is a testament that the diamond has undergone a complete professional and unbiased examination. This is a report that is done by a gemologist that has evaluated, measured, and graded the diamond. A completed certification would include the diamond’s weight, color and clarity grade, as well as the other characteristics of the stone.
There are many companies that certify diamonds, but the most recognized, consistent, and unbiased laboratory is that of Gemological Institute of America, or GIA. Other companies are capable of certifying a diamond, however the grading standard tends to be lower than that of GIA.