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https://www.liveabout.com/platinum-jewelry-information-2043747
Aug 17, 2017 · Jewelry that contains at least 950 parts per thousand of pure platinum may be marked or described as "Platinum". 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", orEstimated Reading Time: 3 mins
https://www.afashionblog.com/platinum-ring-stamp-meanings/
Does a platinum ring have a stamp? Yes. Platinum rings have a stamp or hallmark sign. Platinum rings could, however, have different stamps depending on their constituent metals. Platinum is one of the heaviest metals on earth. It is a precious metal that is naturally grey-white and also non-corrosive.Estimated Reading Time: 8 mins
https://www.answers.com/Q/What_is_the_stamp_on_jewelry_for_platinum
Apr 06, 2010 · Apr 06, 2010 · The general stamps for platinum jewelry are PLAT and PT.In addition, platinum jewelry is also often stamped as follows:90% pure platinum jewelry - 900 Platinum, 900 Plat, Plat 900, Pt900 or ...
https://thinkengraved.com/blogs/news/a-guide-to-what-jewelry-stamps-mean
Apr 29, 2021 · For platinum, the stamps are 850, 900, 950 and 999. Please refer to the photo to see what the stamps look like as well as the essay’s office stamp. That covers the most common stamps on gold jewelry. There may be some other variations or even country …Estimated Reading Time: 7 mins
https://www.khollisjewelers.com/precious-metal-stamps-hallmarks
900 Platinum - Also: 900 Plat, Plat 900, Pt900, 900Pt* 90% pure platinum (900 parts out of 1,000) Ruthenium, rhodium, palladium, and other platinum group metals. 950 Platinum - Also: PLAT, PT, 950 Plat, Plat 950, Pt950, 950Pt* 95% pure platinum (950 parts out of 1,000) Ruthenium, rhodium, palladium, and other platinum group metals
https://www.leaf.tv/articles/what-are-some-identifying-marks-on-a-platinum-ring/
Such a ring may simply read "Platinum," "Plat" or "Pt," or may be marked "95% Plat," "950 Plat" or "950 Pt." Rings containing 850 or more parts pure platinum may be described as "platinum" if they use the number "850," or "85% or more" to qualify "Platinum" or its abbreviation in the content marking. Abbreviation marks for other PGMs include: "Plat."
https://www.sellyourgold.com/faq/my-items-gold-silver-or-platinum
6 rows · Gold Purity Stamp Purity Silver Purity Stamp Purity Platinum Purity Stamp Purity; 375: 9 ...
https://www.specialtystampandcoin.com/
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