What is DiamCalc and who benefits from it
What is new in the DiamCalc?
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
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
What is DiamCalc and who benefits from it

DiamCalc is a system for cut gemstones modeling, which enables many different users to achieve their goals. The real (photorealistic) image of a polished diamond created by the system makes it possible to determine the cut properties that often cannot be measured and to find the optimal combination of cut parameters that would provide the best perception, brilliance, fire, scintillation and others of the stone.

Photographs do not adequately show the sparkle and brightness of a real diamond; until now. DiamCalc since version 3 has High Dynamic Range (HDR) imaging that shows the intense sparkles on your computer screen by reproducing the flares or bloom that we see in real diamonds. Bright sparkles often appear to be larger than the facet they emanate from, even extending outside the edge of the diamond.

DiamCalc 3.3

Scintillation is the last great frontier of diamond cut studies. Regular ray tracing software and lab grading systems have failed to model scintillation and capture this bloom factor.

Now buyers and sellers can realistically show a client, or visualize a distant diamond themselves before buying it. They can see just how it will look as they rock it from side to side in their own environment and even make promotional videos for individual diamonds.

Play 5 full size DiamCalc 3.2 Demo movies in one window

 Play 5 full size DiamCalc 3.2 Demo movies in one window (total size 1500x516 px)
 Play 3 full size DiamCalc 3.2 Demo movies in one window (total size 900x516 px)

Vizit DiamCalc HDR Demo Movies page

DiamCalc's High Dynamic Range lighting can come from a variety of panoramas such as a ball room, forest or hillside so anyone can see how the diamond will look in each of these environments. Jewelers of the future will no doubt import panoramic images of their own sales floor into DiamCalc.

HDR panorama - Holloway Diamonds, Canterbury - halogens, metal halide and daylight
HDR panorama - Holloway Diamonds, Canterbury - halogens, metal halide and daylight

Download full size hdr panorama, Color, 4096x2048px (19,2 Mb)

Download full size hdr panorama, Grayscale, 4096x2048px (7,37 Mb)

More details..

The result of new technologies is the highly photorealistic images reflecting both non-trivial optical properties of gemstones and compound features of the environment.

The Diamond Calculator is designed for jewelers, diamond graders, and sale specialists dealing with diamonds and diamond jewelry, for companies active in designing special cuts, manufacturers and technologists.

There are advanced professional versions of Diamond Calculator: DiamCalc Pro and DiamCalc Color.

The DiamCalc Pro is developed to help designing new cuts and optimize existing cut proportions to achieve the best cut qualities. DiamCalc Pro software aids quantitative and qualitative cut performance assessment by outputting into simple text reports that are powerful when made into graphical charts, and images presented in 2D html tables with selected proportion ranges.

DiamCalc Color is an exclusive advanced professional version of DiamCalc software. This software is restricted in its availability on personal request. It is developed especially to optimize the proportions for cutting the best possible fancy color.

Press Release. DiamCalc 3.0 and DiamCalc 3.0 Pro launched by OctoNus

What is new in the DiamCalc?

April 13, 2017 - DiamCalc 3.3.53 build 724 is released.

Release notes for DiamCalc 3.3.53

Download DiamCalc


Coustics will be available in the next versions of DiamCalc.

Coustics. Light source is under horizontal plane. It shines through the paper Coustics. Light source is low over horizontal plane
Demo-movies Demo-movies

Main features of DiamCalc

  • Precise calculation of a stone weight by taking into account all main parameters, such as diameter, total depth, girdle thickness, pavilion depth, crown angle etc.
  • Generating 3D images and movies of polished diamonds:
    1. High Dynamic Range photorealistic images and movies. Light absorption, repeated reflections, dispersion, variable lighting, High Dynamic Range panoramas, real observers and many others are used in images rendering.
    2. Outline framework models and refraction models, which show refractions of back facets seen through front facets
    3. Stereo mode - three-dimensional images of diamond that can be seen with a pair of stereo glasses
  • Stars and bloom effects
  • Inclusions rendering
  • Inclusions Defocus (DiamCalc Pro only)
  • Non convex cut renderings
  • ETAS and DETAS images, statistics diagrams
  • QuickTime movies and export it for ipod / iphone
  • Possibility to work with the main diamond cut styles: Brilliant, Oval, Marquise, Pear, Princess, Baguette, Happy-8, Emerald, Flanders, Heart, Radiant etc.
  • Loding external dll cuts, scanned mmd and srn cuts, asc, etc.
  • Creating new variable 3d models of diamonds by Cut Designer
  • Determination of fixed or variable parameters
  • Determination of parameter combinations for diamond grading, including GIA, HRD, AGA and Russian TU systems. Evaluation of the defects deteriorating the diamond perception
  • Spectrum import and baseline correction by photos
  • Control of report templates
  • HTML photorealistic (jeweler) report
  • Comparative report (DiamCalc Pro only)
  • Price lists. Prices calculation based on color, clarity and fluorescence.


What is new in the DiamCalc 3.2 beta?
DiamCalc 3.2 beta Documentation (PDF)
DiamCalc 3.0 Documentation (PDF)

DiamCalc FAQ

Video tutorial

Tutorial - Using DiamCalc & GEM Adviser on http://ideal-scope.com

Video Chapters:

  1. Turning on the lights
  2. Opening emailed DiamCalc and gem Adviser files
  3. Saving image and Gem Adviser to email client
  4. Changing preset diamond shapes
  5. Cut Quality and Appraiser
  6. Scanned reports and advanced facet edits
  7. Making movies for emailing, websites and youTube
  8. Inhouse grading report
  9. Split screen viewing and ray tracing
  10. High Dynamic Range lighting
  11. Converting to Gem files
  12. Using GemAdviser

Quick guide on Key operations (How to..)



DiamCalc cut parameters
Cut Quality Estimation

  1. Estimating the mass of the stone and calculating cut parameters
  2. Support for different cuts and a large set of parameters
  3. Support of external cut designs and diamond 3D-models- GemCad, AutoCAD and Sarin files import (registered version only)
  4. Working with different types of gemstones
  5. Finding unknown parameters (mounted diamonds, estimating proportions of diamonds before they are cut) and parameter fixing
  6. Selecting measurement units and parameters to show
  7. Appraising cut quality (GIA, HRD, AGA, Russian TU systems) and estimating the price of the diamond
  8. Different visual presentations of diamond, fine-tuning images to produce realistic view of a diamond
  9. Detailed description of DiamCalc appraisers
  10. Appraiser file format
  11. OctBrill.txt file format
  12. Price list file format

Tutorial: How to Create High dynamic range (HDR) panorama

Diamond 3DBook - interactive diamond traning course

Diamond 3DBook is a computer tutorial that involves extensive information on working with diamonds: from the physical background determining the unique properties of these stones to the modern worldwide system of diamond trade.

3DBook is designed for training diamond specialists and raising the level of their skills. The capability of interactive diamond modeling and the availability of extensive reference data make Diamond 3D Book a useful tool in everyday work of gemologists, appraisers, Certification Centers, gemstone cutters, gemological labs and institutes, manufacturers and sellers of diamonds and jewelry made of these.


Online store

Cuts gallery

Related products and Process Flow

Steps / Process Old process

Without Immersion Glass

Modern process

With Immersion Glass

Scan / Estimate rough during purchase Helium Tender

Scanning or Preliminary scanning of 3D Model of rough
Scanning of rough Helium Rough

Scanning 3D Model of rough
Software for working with Helium Rough and Helium Tender scanners Helium Rough Software download
Immersion Glass Molding Not available

Immersion Glass

In this technology, Immersion Glass material is used. Immersion Glass is the material having nearly same Refractive Index value as Diamond and is solid at Room temperature and melts to liquid at around 100°C. We can heat Immersion Glass and Diamond in cubical mold so glass and diamond will become a single entity and reflections of inclusions will be removed. Due to absence of reflections, plotting on M-Box is more precise, very easy and can be done by even non-experienced operator.

Immersion Glass cubical mold Scanning Not available Helium Rough

Scanning 3D Model of Immersion Glass cubical mold with rough inside
Plotting of Inclusions Making set of photos on Helium Rough scanner. Then inclusion including VS to I can be plotted manually on M-Box/Helium Rough photos. Helium IG (HIG)

Completely Automatic Plotting System for Inclusions  VS2-I3

HIG uses 3D model obtained on Helium Rough.

HIG makes set of photos with very high depth of sharpness for better viewing of inclusion.

Software for working with HIG scanner - Oxygen HIG Software
Further plotting of Inclusions on M-Boxes M-Box or M-Box 1.5

M-Box - 5 Axis-Microscopic inclusion mapping system for Helium Rough

M-Box 1.5 - 6 Axis Motorised M-Box with Stereo Viewing through Oculars
M-Box 2.0

M-Box2.0 - 6 Axes - Completely Motorized Microscopic - 3D Automatic Inclusion Plotting System

Software for working with M-Boxes Oxygen Immersion
Oxygen Microscope Server
Software for working with projects from M-Boxes Oxygen Inclusion
Software for allocation and planning

Pacor Client - Detecting the most profitable option of rough marking.
Oxygen D-Z - D to Z color estimation: Enhancing value while planning/optimizing.

Scanning and grading diamonds

Helium Polish - Scanning 3D Model of diamond. Creating detailed reports.

Rapid making high quality photos and videos of polished diamonds

DiBox - Rapid Photography System captures images of polished diamonds under various structured lighting environment and make it ready for Printing or web publishing.
DiBox 2.0 - Rapid Photography System captures images and movies of polished diamonds under various structured lighting environment and make it ready for Printing or web publishing.

Making 3D video and photo of diamonds

ViBox - The Video Box allows the manufacturer to prepare images and movies 3D for the diamond and diamond jewelry.

Visualizing of 3D models of polished diamonds and other gemstones, grading and making reports

DiamCalc - For jewelers,diamonds graders,sale specialists dealing with diamonds and diamond jewelry, manufacturers,technologists

Free software for visualizing of 3d models of diamonds, exploring solutions, for 3d video of diamonds and jewelry GemAdviser Free Version

Oxygen Viewer Free Version

Stereo Viewer Free Version