Articles about Diamond Grading

Diamond clarity grading involves assessing how readily visible the inclusions are in a diamond and accounting for an extensive list of potential variables including the size, number, type, location, and relief of its inclusions. At the American Gem Society Laboratories (AGSL), clarity grading begins once color grading is completed.

Fancy Vivid Yellow - "The King of Yellow Diamonds." This article will delve into the world of these most highly prized yellow diamonds.

A diamond’s color (or lack thereof) is a critical aspect in determining its market value. Grading the color is therefore a crucial part of the laboratory certification process. The following article will illuminate the various steps and considerations in performing color grading at the AGSL.

Diamond Grading – The AGSL Way : Part Two

Many consumers are curious about the journey that a diamond takes in acquiring laboratory certification. We place great value on the report that specifies the diamond’s identity and grading of the 4Cs, but we seldom stop to think about what it takes to make it happen. When you actually break down the process you begin to understand the full value added by a grading report from a high quality lab.

Diamond Grading – The AGSL Way : Part One

In the internet age consumers expect to know the details of their purchases more intimately, especially the significant ones. In-depth and comprehensive information is more accessible to the consumer today than ever before. Informed diamond shoppers understand that certain characteristics that might not be obvious to the casual shopper may in fact be significant in terms of value and performance. These factors are revealed in high quality laboratory reports. Moreover, laboratory grading provides expert, unbiased, third-party evaluation that is not vested in the sale of the diamond.