2 points
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From that article (thanks for sharing, btw) it seems like there are a series of relatively simple tools to identify the different kinds of diamonds, the main problem being large assortments of small pieces.
It only mentions laser inscriptions in passing, how easy would it be to counterfeit one? Seems like there are many aspects that can be checked relatively easily to see whether the actual characteristics match those in the inscribed ID?
In the polarizer strain test, I’m not sure which one makes a better diamond, one with more or less stress lines. Since the main aspect of ornamental diamonds is the ability to bend light as many times as possible, would the extra stress lines help or hinder that?
