CO 275?

Discussion in 'Jewelry' started by rhiwfield, Jul 10, 2017.

  1. rhiwfield

    rhiwfield Well-Known Member

    I know very little about jewelry and said to a lady at a recent auction more in hope than expectation "there's nothing good in that lot, is there?"

    To which she said that modernist brooch is nice (Finnish) and that charm bracelet is worth looking at (16 x 800 silver charms).

    So we thought we should check out the other pieces and here are two.

    The pearls clasp has got a mark on I havent seen before. I guess the 925 A4 is a silver mark but what is the CO 275? Does it mean that it is gold plated silver?

    And are green stones interesting or rubbish?
    [​IMG] [​IMG] [​IMG] [​IMG]
     
  2. Mansons2005

    Mansons2005 Nasty by Nature, Curmudgeon by Choice

    IF (big IF there) the mind is till working 275 is a gold mark for 9k ....................in this instance I THINK it means that the sterling piece is washed with 9k gold....

    let us see what those who KNOW say......................

    oh bother.I may be way off - I think 675 is 15k so.........................
     
    moreotherstuff, judy and rhiwfield like this.
  3. Ownedbybear

    Ownedbybear Well-Known Member

    It's 375 that's 9 ct. I think that's just a makers mark. Are those pearls gritty on your teeth? They're well enough strung to be cultured. As to the stone, looks like rough turquoise matrix, so the rest might be silver.
     
  4. Mansons2005

    Mansons2005 Nasty by Nature, Curmudgeon by Choice


    thanks..............I KNEW I had it all fakakda...............and as I couldn't think straight enough to get it correct, I let it stand as a monument to my inability to remember my name, let alone anything else...............................
     
    Aquitaine, rhiwfield and judy like this.
  5. komokwa

    komokwa The Truth is out there...!

    the green stones look like Eilat stones....from here....but may be something else.

    upload_2017-7-11_12-34-52.png
     
    rhiwfield likes this.
  6. rhiwfield

    rhiwfield Well-Known Member

    Bear, not sure the test works with dentures :(
     
    komokwa and kyratango like this.
  7. Ownedbybear

    Ownedbybear Well-Known Member

    Eilat is a thougt, given that caged work. Quite Israeli.
     
  8. Any Jewelry

    Any Jewelry Well-Known Member

    It is possible.
    Eilat stone is a combination of chrysocolla with azurite, malachite, and turquoise. You would see blue as well as green.
    Israeli cagework is made by Yemenite silver/goldsmiths, so strongly Arab influenced. It is a type of filigree, and usually slightly more sophisticated than in this bracelet.
    Here is a Yemenite gold filled Eilat stone bracelet:
    [​IMG]
    Still, it could be a simpler version, with green turquoise, which is also used in Israeli jewellery.
     
    rhiwfield and komokwa like this.
  9. EstatesAppraiser

    EstatesAppraiser New Member

    Hi, I believe the CO275 identifies the "pearls" as Majorca. I've only ever seen that marking on Majorca necklace clasps.

    Here's an internet blurb about Majorca:

    Majorica Pearls is the brand name for a man-made type of simulated (faux) pearls. They were given this name because they were originally invented in Majorca (Mallorca), Spain, and continue to be manufactured there to this day.

    The company uses a hand-blown glass bead, and coats the surface with an adhesive paste made from iridescent North Atlantic fish scales and oil to make the surface look like a real pearl. These nuclei are repeatedly dipped, and polished between dippings. It takes 30 dippings and polishings to produce these hand-made "pearls". A special final coating is then applied, and to prevent deterioration, Majorica pearls are then put under ultraviolet radiation.

    They are easily identified as faux pearls by the teeth test, as they are very glassy and without grit. For those without teeth, you can also X-ray them to see the bead inside.
     
    Houseful and rhiwfield like this.
  10. EstatesAppraiser

    EstatesAppraiser New Member

    Arrgghh, typos above! My computer kept correcting the name Majorica to Majorca, sorry!
     
    rhiwfield likes this.
  11. lore ervin

    lore ervin New Member

    This was good info, being that I have this exact necklace and knew nothing about until now!
    thanks!!
     
    komokwa likes this.
  12. lore ervin

    lore ervin New Member

    here they are!
     

    Attached Files:

  13. Houseful

    Houseful Well-Known Member

    The A1 next to the 925 is a puzzle. When I see A1 on cutlery etc it generally means good quality silver plate.
     
    Any Jewelry likes this.
  14. Ownedbybear

    Ownedbybear Well-Known Member

    I think that's a conjoined AM rather than A1.
     
Draft saved Draft deleted

Share This Page