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  1. #1
    Oct 2008

    Markings inside an old ring

    Can anyone tell me what the marking 333 means on the inside of an old gold ring?

  2. #2
    Sep 2008
    Greensburg, PA
    131 times

    Re: Markings inside an old ring


    33% Gold, or "8 karat"

    The stamps for percentage and karat symbol for gold expressed as follows:

    333 - 8K gold
    375 - 9k gold (vey popular in the old world, especially pre WWII UK)
    417 - 10K gold
    500 - 12K gold
    585 - 14K gold
    666 - 16K gold (gold teeth and fillings)
    750 - 18K gold
    792 - 19K gold (used in portugal)
    833 - 20K
    916 - 22k gold
    999 - 24K gold

    - kevo
    Sign the petition to reinstate Hank to the Grand Old Opry:

  3. #3

    Re: Markings inside an old ring

    good job Kevo, just wanna point out that it would be 33.33 %, which is nit picking I know, but just in case someone wants to do the math thingy.

  4. #4
    Oct 2008

    Re: Markings inside an old ring

    Thanks so much both of you. Another question concerning markings. Can a ring be gold if it has no Kt or number markings? I have a wedding band that has two markings inside. The first marking looks like a letter U with an arrow through it. The second marking is a large circle with a smaller circle inside the larger one. I have never seen these markings before. The ring has never tarnished despite it's age.

  5. #5

    Dec 2006
    45 times
    Banner Finds (1)

    Re: Markings inside an old ring

    if you take the ring to a jeweler he can do a rub test and be able to tell you what the content is if any

  6. #6

    Re: Markings inside an old ring

    In answer to your first question yes, it is possible to have a gold ring without an Identifying Karat mark. This can happen in a number of ways, one being smuggled jewelry is sometimes miss marked or unmarked in order to avoid taxes. Another way is antique jewelry from before the Karat marks were required. Another way is home made jewelry rarely comes with Karat mark. On a side note not all Karat marks are authentic. What I would suggest is to obtain a gold test kit they are really cheap and well worth it if you are into this hobby in even a small way. As for the markings you describe, I'm not familiar with either markings, but that means nothing, I'm no expert.

  7. #7
    Oct 2008

    Re: Markings inside an old ring

    Thanks!! I have done as much research online on these markings as was available and could find nothing. I will take your advice and buy a testing kit. This is an awesome sight!!!!

  8. #8
    Gypsyheart~ Queen of Rust

    Nov 2005
    206 times

    Re: Markings inside an old ring

    The U with an arrow through it is the hallmark for Uncas jewelry......I think ,but am not quite sure that they were located in Rhode Island
    I go a great distance,while some are considering whether they will start today or tomorrow



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