[Jewelry making - Article 00661] - Re: [Orchid] Re-tipping prongs setting

[Daniel R. Spirer]

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>      One very important thing the original poster needs to know is that
>     only diamond and ruby and sapphire can be retipped with the stone
>     in. 

    I know I have brought this up before but it obviously needs to be
    said again.  In today's treated gemstone market it is no longer safe
    to assume that you can heat ruby and sapphire.  So many treatments
    are being used that it is impossible to know what reaction might
    occur when heating these stones. I have had dyed rubies turn black,
    ruby doublets (from a very high end New York jewelry store who had
    apparently been fooled themselves as only some of the stones were
    doublets) split in two and fancy colored sapphires change color. You
    also need to thoroughly check diamonds for indications of fracture
    fillings before you go ahead and heat those stones as heating will
    most assuredly affect the treatment.  If it is at all possible we
    will always remove stones from their settings before retipping. 

Daniel R. Spirer, GG
Spirer Somes Jewelers
1794 Massachusetts Ave
Cambridge, MA 02140
617-491-6000
spirersomes AT earthlink.net
www.spirersomes.com

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