Hallmarks 585 and 750 on gold jewelry and diamond recognition
Help with two hallmarks on a gold ring - 350 & 750 : r/Hallmarks
What Do the 750, 585, and 417 Markings on Gold Jewelry Mean?
Found this ring today by a river. Hallmarked 18K 750 but was tarnished like brass til I polished it up a tad. An old fake perhaps, or can 18K come out of
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