Jasper Paulsen has done a fantastic job of putting the whole of Tolkowsky's 1919 book "Diamond Design" onto the Internet for all to read.
But not content with that, Jasper has programmed his computer to recalculate Mr. T's formulae
without the errors from rounding. With the addition of a girdle he found that table sizes should
be larger and crown and pavilion angles should be shallower than the original design.
http://www.folds.net/diamond/index.html
https://www.octonus.com/projects/diamond-cut-study/diamond-cut-grading-system-octonus is an MSU study of diamond cut. There are many wonderful free tools on this site too.
DiamCalc models polished diamonds, traces light paths and creates movies of a stone being moved. For product information and available downloads, visit the official Octonus website.
DiamCalc at Octonus
Bruce Harding wrote an important article published in 1975 titled "Faceting
Limits" Faceting Limits at Octonus
For diamond and jewellery appraisal information, visit David Atlas.
Tools & references / 1 MIN READ
Links & references
From the original Diamond Cut research. Some terminology, references and product information reflect the period in which it was written.
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