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Thread: soldering silver ring with sapphire in place?

  1. #1
    Join Date
    Apr 2014
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    268

    Default soldering silver ring with sapphire in place?

    Hi guys,

    Hoping for some pointers/advice. I have a green smooth sapphire cab set into a simple silver ring (part of a stacking set, pictured), but I have a customer who loves this stone and needs it to be 3 sizes smaller...

    Firstly, does anyone know of anyone that would be able to supply me a stone like this? It's a 6mm smooth green sapphire, not quite as vibrant as in the picture, but still a nice bright green. The supplier I got it from don't have any more in stock.

    Alternatively, I should be OK to just cut the shank, immerse the setting in thermo paste and solder it shut again? Any tips/ideas?

    Cheers,
    Carin

    Click image for larger version. 

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    Last edited by camalidesign; 11-10-2016 at 11:06 AM.
    Carin Lindberg

    Camali Design
    www.camalidesign.com

  2. #2
    Join Date
    Sep 2014
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    2,067

    Default

    I wouldn't want to risk it personally, I would either remove and reset it or get somebody with a PUK laser to do it.

  3. #3
    Join Date
    Dec 2009
    Location
    Central London
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    Default

    I would extract the stone intact, as that is the most precious item and there are two ways:

    1. Insert the point of a craft knife gently between stone and bezel. Go round and round five or six times until a gap opens, enough to extract the stone with BluTack, or heavy duty sticky tape. If you are patient this will eventually work and preserve the bezel.

    2. Cut the bezel horizontally at the base of the stone, until the stone shows. Then lever the bezel up with a knife and cut it with side cutters to release the stone. Make a new bezel cup.

    Or do as Sara suggests. Dennis.

  4. #4
    Join Date
    Jun 2013
    Posts
    668

    Default

    ward gemstones has a couple

  5. #5
    Join Date
    Apr 2014
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    Default

    Thanks all, I guess I will take it out and reset or re-do the setting, depending on how I get on with taking it out.

    Wards only have a few smaller ones, but thanks for looking!

    Ta!
    Carin
    Carin Lindberg

    Camali Design
    www.camalidesign.com

  6. #6
    Join Date
    Jul 2009
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    Romsey
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    Silver's a tad easier to weld than high-carbon steel, thankfully...

  7. #7
    Join Date
    Dec 2014
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    South Australia
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    Personally three sizes is pushing the limits of re-sizing, I would just remake it, ( or make another one )

  8. #8
    Join Date
    Jul 2009
    Location
    Romsey
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    You reckon? I've got a set ring here which I'm taking from an R to an L... Bit of a swine, but doable.

  9. #9
    Join Date
    Apr 2014
    Posts
    268

    Default

    It's a simple 2.5 mm round shank so I could just cut out a little piece and re-solder it, 3 sizes should be absolutely fine to re-size! But as I will possibly have to remake the bezel anyway, I might just make a new shank and use the old one for something else...

    Carin
    Carin Lindberg

    Camali Design
    www.camalidesign.com

  10. #10
    Join Date
    Dec 2014
    Location
    South Australia
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    I have never downsized, 3 sizes as yet, I was always told by my mentor that 3 sizes about the limit

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