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https://www.thoughtco.com/metal-jewelry-stamps-and-marks-608017
Feb 12, 2020 · A quality mark contains information about metal content that appears on an article. It is usually stamped or inscribed on the piece. There is considerable confusion about the meaning of quality marks that are seen on jewelry …Estimated Reading Time: 4 mins
https://jewelry.lovetoknow.com/about-jewelry/understanding-markings-jewelry
9 rows · Metal Content. Many jewelry marks represent the metal content of the piece. This is ...Author: Kate Miller-Wilson
https://www.invaluable.com/blog/guide-to-jewelry-marks/
Apr 06, 2020 · A piece of jewelry with an etching that reads “18k” or “750” indicates that it is made up of 75 percent gold, while a “14k” or “585” mark indicates the metal is constructed with 58.5 percent gold.
https://truval.com/blog/jewelry-identification-marks-hallmarks-makers-marks/
Gold Jewelry Marks. Gold jewelry will often have different numbers inscribed or etched in them to signify the metal’s karat content. A ‘750’ marking means that a piece is 18-karat gold while ‘585’ signifies 14 karats and ‘417’ 10 karats. Costume Jewelry Makers Marks.
https://www.langantiques.com/university/hallmarks-on-period-jewelry/
When one finds a purity mark of 18k, it indicates that the alloy to create the jewelry from is made out of 18 parts of gold and 6 parts of other metal. To translate that to percentages we divide 18 by 24 and multiply it by 100. In the case of 18 karat gold, the simple equation will be (18/24) x 100 = 75%.
https://goodjewelleryguide.com/jewelry-hallmarks-guide/
Jan 21, 2021 · The purity mark is one of the first signs to look for on your jewelry when purchasing or viewing jewelry. This sign shows the percentage of precious metal used in making the jewelry. This hallmark indicates how many percentages of precious metal your jewelry contains. Each metal has a different rating, a different code, and a different number.
https://www.liveabout.com/platinum-jewelry-information-2043747
Aug 17, 2017 · Jewelry that contains at least 950 parts per thousand of platinum group metals, with at least 500 parts per thousand of the total pure platinum, may be marked as platinum as long as the numbers of each metal are disclosed.Estimated Reading Time: 3 mins
https://www.thesprucecrafts.com/silver-marks-and-terms-149394
Dec 18, 2020 · Marks include German Silver and E.P.N.S (electroplated nickel silver). Originating in Germany, it was used as a less expensive substitute for sterling, primarily in the late 1800s and early 1900s. Nickel silver: This is another silver-colored material with the same metal content as German silver. It is a mixed metal alloy with no silver content, used around the same time frame as German silver to …
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