[Jewelry making - Article 00123] - Re: [Orchid] Soldering with diamonds in place

[Daniel R. Spirer]

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    While boric acid is helpful and a reasonable preventative it is not a
    guarantee against burning a diamond. If it doesn't coat the entire
    diamond (which it often can't when the stone is in a setting) or the
    heat burns off too much of it the chance of burning a diamond is
    still there. On top of this is the fact that there are so many
    treated diamonds out there today as well. You can burn fillers out
    when you heat the stone as well. It's just better not to risk it
    anymore unless there is absolutely no other way to do the repair. 

Daniel R. Spirer, G.G.
Daniel R. Spirer Jewelers, LLC
1780 Massachusetts Ave.
Cambridge, MA 02140
www.spirerjewelers.com
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