What is Pacor Client and who benefits
What is new in the Pacor Client ?
Version history


Creating and customizing appraisers (PDF)
Creating and customizing pricelists (PDF)
Creating and customizing Pricelists from Rapaport CSV files(PDF)
Samples *.oxg with photos
Test CPU performance of the Pacor, Helium Rough and Oxygen Software
PACOR - Advanced Computer technologies for Processing of Rough diamonds
External cut
Pacor Client Download
DiBox 2.0
GemAdviser Free Version
Helium IG
Helium Polish
Helium Rough
Helium Tender
M-Box 2.0
M-Box 1.5
Oxygen DZ
Oxygen HIG
Oxygen Immersion
Oxygen Inclusion
Oxygen Microscope Server
Oxygen Viewer Free Version
Oxygen XRay Server
Pacor Client
Stereo Viewer Free Version

PACOR - Advanced Computer technologies for Processing of Rough diamonds
Laser Mapping of Concavities
Scanning major and minor symmetry features
Technology patent "A method and apparatus for locating inclusions in a diamond stone"
Immersion Glass
Helium Rough and Pacor
External cut modules

There are two ways for using different cuts in diamond allocation in Pacor:
1) Built-in parametric cuts. This technology allows to achieve the highest precision and flexibility in allocation (search for optimal allocation with variation of up to 15 cut parameters simultaneously)
2) ASCII cuts. This option allows to use almost any arbitrary cut in allocation (even the diamond model obtained by scanning real stone). However only three cut parameters available to optimize allocation: crown, girdle and pavilion depth. Another point is that system of parameters is the same for all these cuts, though real cuts have differences. For example round cut and step cut have generally different approach for pavilion depth definition.

How to upload external cut modules into Pacor Client/Helium Rough software

The list of built-in cuts in the Pacor software includes the most common cuts like round brilliant cut, princess, fancy round, emerald cut etc.
Today the OctoNus clients receive the possibility to use original parametric cuts created by themselves in the Pacor software.
It allows:
1) Using the possibilities of the cut most flexibly and most completely. In the sample cut you will find two special parameters modifying the shape of the girdle.

Parameter gi modifies girdle thickness

Parameter Gd modifies roundness

2) Creating independently and protect your competitive advantage either during the work with new cuts or during the extended work with existing cuts. The cut libraries created by you will be available only to your operators.

External Cut modules and samples download

You can extend the list of cuts with your original cut(s) using external cut module. External cut module is a dynamic link library (DLL) that holds the geometry structure of one or several cuts and contains necessary geometrical calculations.

If you want to use or create your own external cut DLL please visit download page or see samples below.

The samples of External cut DLL's should be placed in the folder Cuttings. They may also be loaded within specific commands in configuration files.

Cushion P36C32

Download External cut Cushion P36C32 (CushionP36C32.dll, 104 Kb).

Radiant P28C24

Download External cut Radiant P28C24 (RadiantP28C24.dll, 80 Kb).


This package contains the source codes, the detailed specifications and requirements to external cut dll along with the Pear cut sample.

Parameters vs, vp, Lh and Rt modify the shape of girdle in plane. Parameters b, Sq and t are the same as for brilliant (see crown angle, star facets and table diameter)

Download External cut (pear) (ExtCutSamples.zip, 68 Kb).


This package contains the source codes, the detailed specifications and requirements to external cut dll along with the Parallelepiped (Prism) cut sample.

Parameter Girdle thickness modify height of parallelepiped.
Parameter Girdle ratio modify width and length ratio.

Download External cut (parallelepiped) (ExtCutParallelepiped.zip, 13 Kb).

Download more external cuts..