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https://quickjewelryrepairs.com/articles/jewelry-stamps-what-do-they-really-mean/
Apr 20, 2016 · 900, 900PT, or PT 900 all signify that the metal used is 900 parts per 1,000 pure platinum, while 950, 950PT, and PT950 denote 950 parts per 1,000 are …Author: Chris Awad
https://hunterridgeacquisitions.wordpress.com/2014/06/27/the-difference-between-silver-sterling-silver-900-silver-800-silver-alpaca-nickel-silver-and-silver-plated-jewelry/
Jun 27, 2014 · hi and thanks for the valuable info. I received a cuttlery set as a present, and the mark on all of the pieces states 900 and next to it 24.80. What does this mean? The knives e.g. have a silver handle but the sharp part is of stainless steel.
https://thinkengraved.com/blogs/news/a-guide-to-what-jewelry-stamps-mean
Jul 19, 2018 · So what does a 900 Platinum, 900 plat, plat 900, pt900 and 900pt stamp mean? 90% platinum or 900 parts per 100. Usually mixed with other platinum metal group alloys such as Ruthenium, rhodium, or palladium.
https://www.answers.com/Q/What_is_900_silver
900 is typical of a marking indicating 90% silver. Most silver jewelry is 925 meaning 92.5% pure. Not sure about the CE stamp. Is 900 silver more valuable than 925 sterling silver?
https://www.liveabout.com/platinum-jewelry-information-2043747
Aug 17, 2017 · Jewelry that contains 850, 900 or 950 parts per thousand of pure platinum may be marked "Plat" or "Pt" if a number is used in front of the term to disclose the amount of pure platinum in the mix, such as : "850 Plat" or "850 Pt", or "950 Plat" or "950 Pt"
http://nacvalue.com/silver-marks/
Apr 03, 2019 · ~SILVER MARKS & WHAT THEY MEAN~ Here are some common marks on silver or silverplate – These marks mean the same standard as US silver prior to 1870-or 90% silver: COIN PURE COIN .900 These marks mean the same as a content of 92.5% silver: STERLING 925 These marks mean electroplated, developed in the US […]
https://www.jewelry-secrets.com/Blog/what-do-the-letters-mean/
Hi! I have an old ring with 900 in a rectangle then G3 in a square then what appears to be a makers mark. It’s gold colored and has amber stones or Garnetts. The center of if the top Of the ring is attached by two small rings. One on each side. What does the 900 and the g3 mean please?
https://www.invaluable.com/blog/guide-to-jewelry-marks/
Apr 06, 2020 · The study of jewelry maker’s marks is a fascinating subject, steeped in history, culture, and art. Often overlooked due to their intentionally hidden location and diminutive size, the etchings found inscribed on a piece of modern or vintage jewelry offer a window into the “who, what, and where” of the piece – and are well worth a serious look.
https://uk.answers.yahoo.com/question/index?qid=20081007100702AAroVfg
Oct 07, 2008 · The USA for example used to use the continental .900 fineness in its gold coins, whereas Canada used 22 carat. Twenty two carat has been found over millennia to provide a good alloy for gold coins. It is almost impervious to chemical attack and tarnishing, yet hard enough to …
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