Bruce Harding
Bruce Harding
Amateur gem cutter - EFMLS Lapidary Award 1975.Mechanical design
engineer/mathematician. Completed all GIA & GAGB gemological
courses 1974-80. Author: "Faceting Limits", Gems & Gemology, 1975,
and "Diamond Design Revisited", now at Octonus website. Presenter at
Diamond Cut Conference, Moscow, 2004.
Last 5 articles of this author
A Study of Colored Stone and Diamond Cutting Angles
Thu, 20 Jan 2011
Stones of different RI must be cut with different facet slopes for best appearance. Diamond cutters don’t realize this because they work with only one material, whose RI is 2.42. Colored stone RI’s vary from 1.5 to 2.3.
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A Study of Colored Stone and Diamond Cutting Angles
Thu, 20 Jan 2011Stones of different RI must be cut with different facet slopes for best appearance. Diamond cutters don’t realize this because they work with only one material, whose RI is 2.42. Colored stone RI’s vary from 1.5 to 2.3.
