The diamonds are sent to Antwerp, Belgium—the home of the legendary Diamond District. The District is known as the global center for diamond trading since the industry’s earliest days. Home to the De Beers Institute of Diamonds, this center uses De Beers Forevermark’s proprietary technology to individually select diamonds against strict criteria to ensure that only the best of the best are chosen in an 18-step evaluation process.
First, the diamond’s papers are checked to establish where they were found and cut and who they were found and cut by. Then, the diamond is examined to ensure all physical qualities of the diamond are natural. The diamonds were then graded on polish, symmetry, color, and clarity—and became two of the few who passed this rigorous evaluation. After this, the sisters were then awarded Exceptional status.