[Jewelry making - Article 01255] - Re: [Orchid] Appropriate gauge for flush setting

[Helen Hill]

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>     I do wonder however, if you could elaborate on your point number
>     three. 

    Presumably he's talking about the fact that for the given proportions
    of a round brilliant diamond (or other gem), an increase in diameter
    leads to an increase in the depth of the stone and the suggestion
    that to flush set stones, larger stones require thicker metal is
    impractical when it gets to largeer stones, such as a 10 mm stone.
    After all, one wouldn't use metal that's 6mm thick (total depth of
    ideal cut stone = approx 60% of diameter) to make a ring so that you
    could flush set the diamond. In other words, for bigger stones, you
    need to use other methods and that's what John was referring to when
    he was talking about under galleries accommodating larger stones. 

Helen
UK
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