Gemstone Faceting, Progression Of Cutting A Sapphire

No talking or music. Just a quick progression video of the cutting of a Montana Sapphire. The faceting diagram used for this stone is "Splitmains Brilliant" a design by Norman Steele. https://facetdiagrams.org/database/files/pc01306.html
(From the diagram, I modified the girdle facets from being rounded to faceted girdle facets that are cut in using the same index numbers from tiers 1 and A.)