Featured Question regarding Amber or Cameo Glass?

Discussion in 'Jewelry' started by laura9797, Feb 13, 2020.

  1. laura9797

    laura9797 Well-Known Member

    So I am cataloging a necklace that only bares the mark of Gasia which is over in the UK. It is oxidized silver and yellow gold with small white diamonds and hung with either amber acid carved or cameo type glass. Is there a way to test what it is? It really doesn't feel like glass but I am not sure if amber has a type of feel to it. Is there a correct name for this technique when it is done on a gemstone? I have a presidium tester but nothing is registering on it. Thanks so much! gasia.JPG gasia2.JPG gasia3.JPG
     
    lovewrens, BMRT, quirkygirl and 9 others like this.
  2. Any Jewelry

    Any Jewelry Well-Known Member

    That is stunning!
    Amber is warm to the touch compared to glass. It is also very lightweight and it fluoresces in UV light. A small UV flashlight will do to test it.
     
    judy, Pat P, Christmasjoy and 3 others like this.
  3. Any Jewelry

    Any Jewelry Well-Known Member

    Amber fluorescence, the fluorescence colour can differ depending on the amber colour:

    upload_2020-2-13_19-23-29.jpeg
    upload_2020-2-13_19-23-43.jpeg
     
    lovewrens, judy, Figtree3 and 8 others like this.
  4. Lucille.b

    Lucille.b Well-Known Member

    Excellent info on the amber testing. If you still have questions, maybe as a back up, you could try emailing the company.

    You never know!

    https://www.gasia.co.uk/ (Has a form to fill on the site for questions.)

    Or this was listed as contact:

    info@gasia.co.uk
     
    judy, Figtree3, Pat P and 4 others like this.
  5. Hollyblue

    Hollyblue Well-Known Member

    Are you sure that the black part of the chain isn't gold?
     
    Xristina and Christmasjoy like this.
  6. laura9797

    laura9797 Well-Known Member

    thanks so much! I just found my blacklight and it definitely fluoresces. Gasia is known for using oxidized silver mixed with yellow gold - usually 18K. I don't have my testing kit with me but will double check Monday.
     
    judy, Pat P, Xristina and 3 others like this.
  7. Hollyblue

    Hollyblue Well-Known Member

    I just looked at their website,they do use Black gold(black rhodium plated).
     
    laura9797, Pat P and Any Jewelry like this.
  8. laura9797

    laura9797 Well-Known Member

    I will test it Monday when I am back in the office. Does anyone know the process used to decorate the amber? It looks so much like acid cut in the cameo glass process.
     
  9. Any Jewelry

    Any Jewelry Well-Known Member

    It could be heated and pressed. That is the way they make most amber beads and many cabochons as well. Amber is fossilized tree resin and it becomes malleable when heated.
     
    laura9797 and Figtree3 like this.
  10. Ownedbybear

    Ownedbybear Well-Known Member

    Good point on the chain. I've a UAE necklace, all gold, but the chain is literally multi coloured.
     
    laura9797 and Figtree3 like this.
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