What is DiamCalc and who benefits from it
What is new in the DiamCalc?
DiamCalc Demo Version
High Dynamic Range Demo movies
Caustic Movies in the next versions of DiamCalc
Scenarios - Demo files demonstraite different possibilities and effects of the program
Press Release DiamCalc 3.0 and DiamCalc 3.0 Pro launched by OctoNus
Diamond 3DBook free full version on-line
Video Tutorial - Using DiamCalc & GEM Adviser
DiamCalc Internal Cuts
External cuts (DLL)
Versions history
System requirements
Information for Mac users
Online Store
Illustrated reports
Download DiamCalc
DiamCalc 3.2 beta Documentation (PDF)
External Cuts gallery (Dll)
Online Store
Complete guide
Quick guide on Key operations (How to..)
OctoNus spread & AGS spread
Cut parameters
Cut Quality Estimation
How to Create High dynamic range (HDR) panorama
3DCalc Pro

3DCalc family
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
DiamCalc : How to..
Quick guide on Key operations

How to select a unit system?

By default, size parameters are presented as a ratio of the corresponding value to the diameter. In some situations, other units, e.g. millimeters, can be more useful. The user can choose measurement units for each particular parameter. To do this, point the mouse cursor to the parameter value and click right mouse button. A menu appears, allowing to see available units and select one of them:

The menu above was produced by pointing the mouse to the value of Girdle thickness parameter and pressing the right mouse button. A check mark shows that the current unit of measurement is percents of the diameter. If millimeters are selected from the menu, a value will be recalculated and shown in a new format.

When values of parameters are entered from the keyboard, units of measurement can be specified along with values. When a string like "1.1 %" or "0.02 mm" is typed, DiamCalc recognizes what is the value and what is the unit of measurement and change them if needed. If only a number is typed, DiamCalc applies the current unit of measurement.