| IMAGEM | IGI | AGS | GIA | |
| Direct Measurement of Light Behavior | Yes | No | No | No |
| Direct Measurement of Color | Yes | No | No | No |
| Direct Measurement of Flourescence | Yes | No | No | No |
| Direct Measurement of Symmetry | Yes | No | No | No |
| Direct Measurement of Table | Yes | No | No | No |
| Measure Girdle to Table Alignment | Yes | No | No | No |
| True Light Behavior Image | Yes | No | No | No |
| True Table and Girdle Image | Yes | No | No | No |
| True Profile Image | Yes | Yes | Yes | Yes |
| Craftsmanship Grade | Yes | ? | Yes | Yes |
| Guaranteed Repeatability of Grades | Yes | No | No | No |
| Measure Primary and Secondary Crown Angles | Yes | ? | ? | ? |
| Measure Primary and Secondary Pavilion Angles | Yes | ? | ? | ? |
| 48 hour service at no extra charge | Yes | ? | ? | ? |
| Patented Technology | Yes | ? | ? | ? |
| Available in the USA and India | Yes | Yes | Yes | Yes |
| Price for 1.01ct stone | $21 | $651 | ? | $1002 |
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This comparison sheet is based on the information available from the
websites of GIA, IGI, AGS & IMAGEM on
1 IGI Pricelist dated March 2007