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923 mark? - Jewelry Discussion - Ganoksin Orchid Jewelry ...

    https://orchid.ganoksin.com/t/923-mark/47823
    jewelry to the “karat” stamps is to divide the karat by 24. 24k is pure gold and other karats contain less pure gold in the metalrecipe. The numbers used instead of a “k” or “kt” represent a percent or “parts per thousand” of pure gold in the mix. For instance, 18k is also the same as 18/24 or 0.750.The numerical stamp

923 Italy marking on necklace.... - The eBay Community

    https://community.ebay.com/t5/Archive-Fine-Jewelry-Gems/923-Italy-marking-on-necklace/td-p/1539847
    Apr 17, 2011 · If a 923 is stamped on a piece of silver jewelry, this means that it is 92.3 percent silver, and then 7.7 percent copper or other metals. I found the above on a couple of websites. 28,547 Views

What does the stamp 923 on a ring mean? - Answers

    https://www.answers.com/Q/What_does_the_stamp_923_on_a_ring_mean
    The 923 you're seeing inside your ring is likely a stamp indicating the purity of the ring. 923 means that the ring is 92.3% pure gold or silver (whichever your ring is). 1 2 3

MJSA Guide to Stamping and Marking Regulations ...

    https://mjsa.org/publicationsmedia/compliance_guides/stamping_and_marking
    • If a jewelry maker wants to stamp jewelry by its quality or "fineness" (e.g., "14 gold," "925 sterling silver," or "950 platinum"), then, in addition to the fineness stamp, the maker must stamp the metal with its federally registered trademark. This second stamp, which should be in proximity to the quality mark, indicates that the maker is ...

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