Forums General Discussion Oldest Gem Design Challenge Reply To: Oldest Gem Design Challenge

  • JTheesfeld

    Member
    May 30, 2018 at 3:46 pm

    Justin,

    I am amazed at the efforts you are putting into documenting excellent faceting history! Your series of web pages are most valuable…please keep up the great work!

    A link on your own website to the following publication, might produce the oldest documented gem design I have found to date. It is:

    http://www.folds.net/diamond_design/index.html

    Diamond Design
    A Study of the Reflection and Refraction of Light in a Diamond
    by Marcel Tolkowsky, B.Sc., A.C.G.I.
    with 37 illustrations

    E. & F. N. Spon logo
    London: E. & F. N. Spon, Ltd., 57 Haymarket, S.W. 1
    New York: Spon & Chamberlain, 120 Liberty Street
    1919

    Contained in this document, by Marcel Tolkowski, are diagrams of an SRB with very specific, although somewhat complicated, angles for faceting. I would consider this a complete, documented design, dated 1919. This entire Diamond Design Study is completely fascinating to anyone interested in seeing the details of how Marcel Tolkowski worked out the proper design for an SRB.