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Category: The cut
How light behaves inside a stone, and what the numbers on a grading report do and do not tell you about it.
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- ArchiveCategory: The cut
- JournalMaison Serti
Where the light goes when a pavilion is cut shallow
A diamond makes no light of its own. Everything you are paying for is a journey in and back out again, and there is…
Tolkowsky, 1919, and what the arithmetic left out
A twenty-year-old engineering student wrote down the proportions the whole trade still quotes. He also wrote down his assumptions, which the trade quotes less…