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https://www.liveabout.com/platinum-jewelry-information-2043747
Aug 17, 2017 · Platinum is a rare precious metal primarily used to create fine jewelry. Its heavy weight and durability make platinum a metal that will not wear away with constant use like gold. Platinum holds fine gemstones firmly in place for the life of the jewelry when used for …Estimated Reading Time: 3 mins
https://www.specialtymetals.com/blog/2016/6/9/how-to-recognize-platinum-when-you-see-it
Jun 09, 2016 · Many people who collect precious metals fail to recognize platinum when they see it. They come across an old ring or other white metal item at an estate sale or antique store, assume that it is made of silver, and pass it by.Estimated Reading Time: 2 mins
https://kipkis.com/Identify_Platinum_and_Silver_Jewelry
Feb 05, 2018 · Find any marks indicating platinum jewelry. Platinum is a very rare and expensive metal. Therefore, all platinum jewelry will be marked to show authenticity. Look for the words “Platinum”, “PLAT”, or “PT” followed or preceded by the numbers “950” or “999”.
https://www.leaf.tv/articles/what-are-some-identifying-marks-on-a-platinum-ring/
Platinum is a heavy, precious metal, gray-white in color and noncorrosive. The platinum group of metals (PGM) are platinum, iridium, palladium, ruthenium, rhodium and osmium. The major platinum jewelry maker and consumer markets today are China, Japan and the United States.
https://www.sellyourgold.com/faq/my-items-gold-silver-or-platinum
Hallmarks are distinguishing characteristics that are stamped on gold, silver and platinum items - typically to identify the items purity. There are also hallmarks that can identify where the item was made (called a makers mark), the office the metal was tested in, the year, and the designer.
https://www.leaf.tv/articles/how-to-identify-gold-silver-and-platinum-metals-like-a-jeweler/
Identify platinum by using this list: Plat 900 PLAT 950 PLAT 10% IRID PLAT 10% IRID 90% PLAT COPLAT Identify Palladium by the marking PD. Look at what is stamped after the markings I listed above. Initials, symbols, and names are the hallmarks or trademarks of the manufacturer.
https://www.gold-traders.co.uk/blog/simple-platinum-hallmark-guide/
Mar 14, 2011 · High-end and specialist precious metal dealers use XRF (X-ray fluorescence) testing to accurately identify the platinum content of jewellery. Inductively coupled plasma, optical emission spectrometry is used by assay offices during the hallmarking process. Tags: Guide, hallmark, Hallmarks, Platinum March 14th, 2011 Hallmarks, Platinum
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