750 Gold Stick Pin - UC Maker’s Mark?

Discussion in 'Jewelry' started by JewelryPicker, May 29, 2024.

  1. JewelryPicker

    JewelryPicker Well-Known Member

    Any help on this maker’s mark?

    marked K18, which I have found on imported (to USA) Japanese pieces

    also marked 750 along with the mystery “UC” makers mark.

    real pearl and 3 tiny natural diamonds

    thanks in advance for help on the UC



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