What’s New in GT Pro
Gemology Tools Professional Revision Tracker
Changes are made on a regular basis to Gemology Tools Professional. Here is where you can find out what changes have been made. You can tell which version you have (and the date is was published) by clicking on Help (on the main menu) and then on About. Since you can download free updates within one year you can decide when you want them.
9.3.22 - December 11, 2017 - Made changes and additions to the gembase
9.3.20 - May 1, 2017 - Made changes and corrections to the gembase.
9.3.15 - September 1, 2016 - Made changes and corrections to the gembase.
9.3.10 - Octobe,r 22, 2015 - Made changes and corrections to the gembase. An alert user discovered that we had inadvertently copied the formula for Jadeite into both Mutton Fat Jade and Chicken Bone Jade. Both of these are types of Nephrite Jade.
9.3.09 - September 1, 2015 - Made changes and corrections to the gembase.
9.3.08 - April 01, 2015 - Made changes and corrections to the gembase.
9.3.08 - April 01, 2015 - Made changes and corrections to the gembase.
9.3.07 - February 21, 2015 - Made changes and corrections to the gembase. Added more Magnetic Response data.
9.3.06 - Oct 18, 2014 - Made changes and corrections to the gembase. Added more Magnetic Response data.
9.3.05 - July 8, 2014 - Made changes and corrections to the gembase. Added more Magnetic Response data.
9.3.04 - May 8, 2014 - Made changes and corrections to the gembase. Added more Magnetic Response data.
9.3.03 - May 1, 2014 - Made changes and corrections to the gembase. Added more Magnetic Response data.
9.3.02 - April 22, 2014 - Made changes and corrections to the gembase. Added more Magnetic Response data.
9.3.01 - January 8, 2014 - Added new inclusion photos. Made changes and corrections to the gembase. Added more Magnetic Response data
9.3.0 - August 8, 2013 - Added new photos. Made extensive changes and corrections to the gembase. Added a diamond weight estimation formula for the Crown of Light diamond cut. Added more Magnetic Response data.
9.2.0 - February 3, 2013 - Put Magnetic Response directly onto the Gemstone Separator screen. This will make it much easier to use. Cleaned up some inconsistencies and errors in the Gemstone Database.
9.1.0 - August, 2012 - Cleaned up many inconsistencies and a few errors in the Gemstone Database.
9.0.0 - July 12, 2011 - Added The Feral System of Magnetic Testing For Gemstones. We made a how-to video of this simple but powerful system. All you need is a Magnetic Response Kit and GT Pro, of course. Added the Specific Gravity Estimator. Due to variations in gem cutting this is not a reliable way to get an SG. Its only use is to give you a rough idea of the specific gravity. It can tell you if your stone is a diamond or a CZ because of the wide disparity in SG for those stones. This was only added because of user requests. Again, WE DO NOT RECOMMEND the use of this module for serious work. It is only for fun and very rough estimates. Made numerous minor additions and corrections to the Gemstone Database.
8.5.0 - 4/7/2011 - Added a calculated birefringence field to the Gemstone Separator and a birefringence column. This allows you to see what your measured birefringence is and compare it to the list. You can then manually delete gems that are obviously out of your birefringence range. Added magnetic response data to the Gembase. Added a Web Help button for those who have Vista or Windows 7 and an internet connection. This will allow you to go to our GTProHelp.com web site.
8.4.6 - 3/13/2011 - Made numerous minor additions and corrections to the Gemstone Database.
8.4.4 -12/01/2010 - Made numerous minor additions and corrections to the Gemstone Database.
8.4.3 - 12/01/2009 - Made numerous minor additions and corrections to the Gemstone Database.
8.4.0 - 11/27/2008 - Added the Specific Gravity Calculator. This utility will take as many readings as you enter and provide you with an average SG. This helps ensure more accuracy than taking only one reading. Fixed the aforementioned Cat’s Eye Jade error. Straightened out the confusing issue of Praseolite/Prasiolite. We had Praseolite listed as green Quartz (which it is) but failed to list it as an altered form of Iolite.
8.3.0 - 10/24/2008 -1) We have added 69 high quality inclusion photos from some of the biggest names in gemology including Barbra Voltaire, John Huff, Ron theimage.com and the Master of ALL inclusion microphotographers John Koivula MicroWorld of Gems. 2) Also in this release are prism spectral images. And, since so many of you asked for it you can now view the spectral images with the red end (700nm) on the left or the right! 3) Now you can view instructional videos from inside the program.
8.2.9 - 6/1/2008 - Made numerous minor additions and corrections to the Gemstone Database.
8.2.5 - 12/02/2007 - Because of the huge amount of data in this program it was necessary (a few years ago) to use a screen resolution greater than 800x600. People that use 800x600 can still use the program but will sometimes find it necessary to use the scroll bars on the right and bottom. One problem area is the Gemology Review. A couple of users weren't able to close the module. The solution is simple. Hit the Finish button and use the Escape key to close the module. All version 8.2.5 does is make it so the user can close the module at any time using the Escape key. This is not a necessary update unless you use 800x600 screen resolution AND want (or need) to bail out of the Gemology Review prematurely.
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8.2.4 - 11/22/2007 - Fixed an improperly opening window in the diamond cut grader. Added 10 gemstone photos. Totals: 1054 gemstone photos, 357 inclusion photos, 521 gems in the Gemstone Database, 1970 gemstone species, varieties, trade names and misnomers available via the Find A Gemstone button.
8.2.3 - 11/21/2007 - Fixed an error in the data output screen for a Radiant Diamond weight estimation. It incorrectly reported the depth percentage. This didn't affect the estimated weight.
8.2.2 - 11/20/2007 - Fixed optic character of Prehnite in the Gemstone Database. It was incorrectly listed as B+ instead of DR B+. This caused it not to show up in a Gemstone Separator Query.
8.2.1 - 11/15/2007 - This is a repair of two labels. The first two column headers in the Gemstone Database should read Species and Group. Because we have two programmers working at the same time an older form was inadvertently used. In version 8.2 (and before 7.1) the first two headers read Variety/Species and Species/Group where they should read Species and Group.
8.2 - 10/30/2007 - Fluorescent (ultraviolet) colors have been added to the Gemstone Data Page. You could always access U.V. colors via the Gemstone Separator but now you can view the possible U.V. colors for each gem.
8.1 - 10/18/2007 - One of our users nearly failed an exam because he entered greenish blue in the Gemstone Separator. This happened because greenish blue wasn’t included for the gem he needed although blue was. We have come up with Color Near Hits to alleviate this problem. Now, when you enter a base color with a modifier, ALL gems that have the base color will be possibilities.
8.0 - 8/19/2007 - Finally, spectral images have been drawn. This project took nearly six months to create over 80 spectral images. Fixed inaccuracies in the Gemstone Database.
7.2 - 6/15/2007 - New inclusion photos. Made numerous minor additions and corrections to the Gemstone Database.
7.1.0 - 2/4/2007 - Fixed some data that was unclear in the database. Added much more content, including over 50 fantastic inclusion photos. Made numerous minor additions and corrections to the Gemstone Database.
7.0.0 - 8/2/2006 - New items include the Custom Piece Calculator, the Glossary, the Gemology Review module, over 100 new gemstone photos and over 50 new, interesting and informative inclusion photos. You can now access inclusions from the gemstone (not just viewing them in the Inclusion Gallery). The Custom Piece Calculator allows you to work up a value for a piece of custom made jewelry (it even outputs a text description to the Windows clipboard so you can paste it directly into your word processor, if you work that way). The Gemology Review module allows you to answer over 900 questions about gemology with a few thrown in about metals and jewelry. Great for test prepping or studying gemology. Other changes include corrections to the Gemstone Database.
6.7.0 - 5/3/2006 - Made extensive changes to both the Diamond Weight Estimator and the Colored Stone Weight Estimator. An information window has been added to both weight estimation modules. The information windows provide tips on the proper way to measure each cut and, more importantly, shows the formula we've used. Unless the cut requires a length-to-width ratio factor you can follow along with a calculator to ensure that GT Pro is accurate. We added a long overdue Weight Correction Factor field in the Colored Stone Weight Estimator. Simply enter 5 if you want to add 5% to the formula (or -5 if you want to subtract 5%). We have added five new shapes to Diamond Weight Estimator (for a total of 18 diamond shapes) and nine new shapes to the Colored Stone Weight Estimator (for a total of 20 colored stone shapes).
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6.6.3 - 2/26/06 - Made numerous minor additions and corrections to the Gemstone Database.
6.6.2 - 2/16/06 - Made numerous minor additions and corrections to the Gemstone Database.
6.6.1 - 2/01/06 - Made numerous minor additions and corrections to the Gemstone Database.
6.6.0 - 9/15/05 - Reformatted the Gem Data page, enlarging the text slightly to make it easier to read. Added a cleavage field to all 504 gemstones. Added the "Pleochroism Colors" button for gems where the data is too large to fit into the normal field.
6.5.4 - 7/31/05 - Added varieties and trade names. Added 8 gemstones. T
6.5.3 - 7/13/05 - Reworked Amphibole Group, Tourmaline Group and Sodalite Group to make them more clear and consistent.
6.5.2 - 7/3/05 - Fixed minor problem in Separator. 2 or 3 color stones not showing up properly. Expanded Magnification fields in the Separator to hold more data.
6.5.1 - 7/2/05 - Changed RI Range to 0% to 2% (was 0% to 3% which was too broad), changed color of toggles to fuchsia (was lime, too hard to see). Cleaned up stones of Trigonal crystal system. Changed name of Round Diamond Cut Analyzer to Round Diamond Recut Planner to more accurately reflect its job.
6.5.0 - 6/11/05 - Fixed a minor bug in the SG field of the Gemstone Separator for < and > signs. The problem was that the < and > signs were reading off the "normal" SG rather than both the low SG and high SG. Normally this shouldn't be a problem but in rare instances is could cause a stone from making the Hit list.
6.4.5 - 6/8/05 - Added Chemical Composition field and data.
6.4.4 - 6/1/05 - Added FTC Gemstone Codes to Info menu.
6.4.3 - 5/22/05 - Added Pleochroism Colors field to Data Page and fixed numerous errors in the Gemstone Database.
6.4.2 - 5/15/05 - Finally fixed the infamous disappearing Variety label problem on the Gemstone Data page.
6.4.1 - 5/1/05 - Now known as Gemology Tools Professional. Separator optimized to run 5 times faster than the previous version.
6.4.0 - 4/12/05 - Beta version released. Adds buffers zones for RI and SG in the Gemstone Separator. Now shows Near Hits.
6.3.9 - 4/1/05 - Fixed some minor problems in Gemstone Database.
6.3.7 - 3/14/05 - Added Serial Number to installation program. Fixed some minor problems in Gemstone Database.
6.3.0 - 12/15/04 - Added the Cabochon Weight Estimator.
6.2.12 10/5/04 - Fixed minor depth problems with Diamond Cut Grader.
6.2.9 7/27/04 - Added 27 gemstone photos. Added missing colors in Diopside (blue, purple). 468 Gems in Gemstone Database. 1457 gems in Find list. 730 Gemstone Photos.
6.2.8 - 4/21/04 - 468 Gems in Gemstone Database. 1457 gems in Find list. 703 Gemstone Photos.
6.2.7 - 4/04/04 - Added 25 gemstone photos. 459 Gems in Gemstone Database. 1345 gems in Find list. 630 Gemstone Photos.
6.2.6 - 3/26/04 - Added 50 gemstone photos. 459 Gems in Gemstone Database. 1342 gems in Find list. 605 Gemstone Photos.
6.2.5 - 3/15/04 - Added ability of Separator to read off of 2 or 3 decimals, solving the 1.54 No Quartz problem. 458 Gems in Gemstone Database. 1340 gems in Find list. 555 Gemstone Photos.
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6.2.4 - 3/13/04 - Added over 100 photographs and fixed several errors in Gembase. 458 Gems in Gemstone Database. 1335 gems in Find list. 455 Gemstone Photos.
6.2.3 - 2/5/04 - Photos and Gemstones added. 456 Gems in Gemstone Database. 1343 gems in Find list. 550 Gemstone Photos.
6.2.2 - 1/18/04 - Install problem solved by upgrading to Q-Setup. 451 Gems in Gemstone Database. 1260 in Find List. 426 Gem Photos.
6.2.1 - 1/04/04 - Problem has developed where the Install program no longer works with Win 98.
451 Gems in Gemstone Database. 1260 in Find List. 385 Gem Photos.
6.2.0 - 12/21/03 - Added Info List on Data Page. Info now searchable from the Data Page as well as the Find List. Rearranged the Gemstone Database (moved Variety/Species to front). 451 Gems in Gemstone Database. 1260 in Find List. 350 Gem Photos.
6.1.2 - 12/5/03 - Added Info Button. 451 Gems in Gemstone Database. 1244 in Find List. 350 Gem Photos.
6.1.1 - 11/21/03 - Fixed 0 problem in the calculator. 450 Gems in Gemstone Database. 1026 gems in Find list. 350 Gem Photos.
6.1.0 - 11/17/03 - Added Find button in Gemstone Database. Previous versions of Gembase.dat are now incompatible with version 6.1. Added 101 gems to database. 442 gems in Gemstone Database. 961 Gems in Find List. 350 Gem Photos.
6.0.4 - 11/5/03 - Added 32 gems to database. 341 gems in Gemstone Database. 350 Gem Photos.
6.0.3 - 10/29/03 - 11/04/03 - Added 64 gems to database. 309 gems in Gemstone Database. 350 Gem Photos.
6.0.2 - 10/23/03 - 10/29/03 Added 31 gems to database. 245 gems in Gemstone Database. 350 Gem Photos.
6.0.1 - 10/19/03 - Added mm/crown height % double-click selector in Prin/Em/Radiant cut graders. Updated Help file to reflect change.
6.0.0 - Release date Friday, September 26, 2003 350 Gem Photos. 214 Gems in the new Gemstone Database.
5.1 - Last release date: 4/1/2001 - 214 Gems in the Gemstone Quick Reference. 0 Gemstone Photos
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Gemology Tools Professional is in use in 76 countries. Most recent country: China (12/07/2017).
With a project this large there are bound to be errors in the program. Some of them have remained hidden for years!
May 31, 2011. Goldstone, a man-made glass was listed under Natural Glass. Was corrected.
May 23, 2011. Speaking being hidden for years, I misspelled the gem Taaffeite. It is spelled Taafeite in version 8.5 and earlier.. This was corrected.. My apologies to Count Taaffe.
Versions 7.2 and earlier may contain the following errors:
Cat’s Eye Jade - This oversight has been in the database for years but it was just pointed out to us that Cat’s Eye Jade doesn’t exist. Although Cat’s Eye Nephrite Jade has been reported even it is best described as Cat’s Eye Actinolite. Fixed in Version 8.4 released 12/1/2008.
Inclusion Gallery: Engine-turned effect on Ivory misidentified as Walrus Ivory. It should be labeled Mammoth Ivory.
Elbaite: the birefringence (double refraction) of Elbaite is listed as +.134 -.021. It should be +.034-.021.
Zircon: It was discovered that we didn’t list pink as a possible color for Zircon. This is particularly irritating since we have a beautiful Pink Zircon photo by Barbara Smigel from Artistic Colored Stones.
Prehnite incorrectly lists as B+ instead of DR B+. This will cause it not to show up in a Gemstone Separator Query. Fixed in version 8.2.2.
Radiant Diamond weight estimations show the wrong total depth percentage. This doesn’t affect the estimated weight. Fixed in version 8.2.3.