There are many available books and articles about the history of faceting. Very few of these resources give actual, cuttable gem designs. That is, they lack detail like index settings, degrees, and a history of who designed the actual gem. That is the sort of history I am challenging people to find.
For example, I would like people to research and find where the original design for the Sancy exists, not just that the Sancy design does exist. Where is the source for how to cut the Sancy? How old is it, who designed it, etc. That is the challenge.
A few more hints; http://www.facetdiagrams.org What is the oldest design in that collection? What is the oldest design in Robert Long’s notebooks? What is the oldest documented Marcel Tolkowsky design and when was the SRB design available? Is the design for the Florentine available? Are any of the designs from Jean-Baptist Tavernier’s Travels in India available, like the Great Mogul, or the Tavernier Blue?
Actual cuttable gem designs are what I am looking for in this challenge. What is the oldest? Good luck!