| 1991. | Beginning of the Project |
| August 1992: | Program wins the competition of new technologies on Moscow cutting plant “Kristall” |
| October 1992: | Two crystals (Spec Stones – 6gr) were marked. As result, a high precision of estimations of inclusions positions and the polished stone's mass was demonstrated. The expert V.N.Panov patronized prototype works. |
| Summer 1993: | System was tested on “Ascor” rough stones. Stones of 3 and 4 ct were marked. Expert M.O.Sherbakow marked a control lot of rough diamonds. Real images of inclusions and reflections' images were calculated (taking re–reflection into account). |
| September 1993: | Diamond Spec Flat Shapes 9.49 ct was marked at “Kristall”, Moscow. According to testing results “Kristall” (Moscow) ordered development of an interactive system of automatic marking DSKR, which was a prototype of PaCor. As a result of this, a system with the following characteristics was developed… |
| 1994 | The Linear-Convex model was created. Naturals on polished diamonds were taken into account. |
| 1995 | Automatic inscribing of polished diamonds including fantasy shapes with parameters and inclusions. |
| November –December 1996: | System was tested by ALROSA company. |
| February 1997: | Production version of automatic marking line-placing system was created. Activity on developing software for Windows 95/NT and software for electronic passports of rough and polished diamonds began. |
| 1997-1998 | Information system on different marking methods was developed. Also several different types of industrial marking systems with different characteristics were created. |
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