[Jewelry making - Article 00291] - Re: [Orchid] Customer's Finger Turning "Green"

[James Miller]

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Mary,

    You have a problem with a customer's finger discoloring from wearing
    a 14ct ring that you made. Assuming that you got your gold from a
    reliable source, the alloy of 14ct gold should be at least 58% fine
    gold to other metals which can be silver, copper and other base
    metals depending on what color gold you want. It is a fact that some
    people's bodies create acids from their bodies ( sweat) and this can
    react with the non gold metal alloys in the 14ct.alloy. I would
    suggest that you get the ring, hard gold plated with about 5 microns
    of thickness, this should stop the finger discoloration problem for
    many years. Perhaps in future you should switch to using 18ct gold
    for your rings. 

Best wishes James Miller in the UK
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