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https://thinkengraved.com/blogs/news/a-guide-to-what-jewelry-stamps-mean
Jul 19, 2018 · What does ALE stamped on jewelry mean? This is basically the maker’s mark for Pandora Jewelry. This is stamped in almost all Pandora jewelry except for maybe a few smaller pieces. What does sk9 Platnaire mean? Platnaire is an alloy consisting of 92.5% silver, 5% platinum and 2.5% other elements but is nickel-free, making it hypoallergenic.
https://www.invaluable.com/blog/guide-to-jewelry-marks/
Apr 06, 2020 · The date letter stamp, a requirement for British jewelry until 1999, is useful to know if you need to date a piece of vintage or retro jewelry. Silver pieces imprinted with a lion denotes 92.5 percent silver — thus sterling silver — while the Britannia mark means that it has 95.8 percent pure silver.
https://www.truefacet.com/guide/jewelry-hallmarks-mean/
Feb 27, 2015 · Common Gold Jewelry Hallmarks Pure gold is 24 karats and is stamped as 999 to indicate its higher gold to alloy ratio. As we move down the scale of gold purity, 20 karat gold is stamped as 833 to represent the 20:24 (or .833) gold to alloy ratio. To simplify the other commonly used gold hallmarks, here is a handy chart of the caratage hallmarks ...Reviews: 9
https://www.langantiques.com/university/jewelry-identification/
This Mark has been Stamped at the Porto Assay Office Since 1985. Solving the intriguing riddle posed by the marks stamped onto a piece of jewelry involves the use of a variety of skills and a wealth of knowledge. At its most basic, we can usually easily identify the type of jewelry i.e. ring, necklace, bracelet, etc. without any specialized ...
https://www.myclassicjewelry.com/blog/vintage-jewelry-marks/
Aug 15, 2014 · Jewelry companies would often use up their supply of pre-stamped clasps and findings after switching to a new signature, so some pieces made soon after 1955 might not have copyright symbols. A detailed study of vintage jewelry marks could fill multiple books, but to give some guidance we can use the Trifari company as an example.
https://www.leaf.tv/articles/what-is-the-meaning-of-numbers-on-jewelry/
The karat stamp has been used in European countries since the 14th century. The United States only adopted hallmarks in the early 1900s. European jewelry usually displays a three-number digit which marks the purity percentage of the metal, while U.S. jewelry opts for 18K, 14K, or 10K hallmarks.
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 and other items. Here is some information that will demystify terms such as "plated," "filled," "sterling," and others.
https://www.agjewelrydesign.com/
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