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Platinum Jewelry: What are PGM and Platinum Marks?

    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

Platinum Symbolism in Platinum ... - Reflective Jewelry

    https://reflectivejewelry.com/news/platinum-symbolism-in-rings
    May 17, 2016 · In European culture, platinum became popular in the 1700s, mainly among royalty. The symbolism of platinum was tied to rarity and exclusiveness. Even from the beginning, the platinum wedding ring club made a statement! The early symbolism of platinum carries over into how the metal is viewed today. A platinum wedding ring symbolizes exclusivity.

What Are Some Identifying Marks on a Platinum Ring? LEAFtv

    https://www.leaf.tv/articles/what-are-some-identifying-marks-on-a-platinum-ring/
    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." or "Pt." for platinum; "Irid." or "Ir." for iridium; "Pall." or "Pd." for palladium; "Ruth." or "Ru."

What Is The Meaning Of The Symbols Stamped On Jewelry ...

    https://globalgoldandsilver.com/what-is-the-meaning-of-the-symbols-stamped-on-jewelry
    900 Platinum or 950 Platinum The following stamps; PT950, 950PT, 950, PT900, 900PT, and 900, designate that the piece comprises one of the two most common platinum alloys. Symbols with 900 indicate that there are 900 parts per 1,000 pure platinum; whereas symbols with 950 indicate that there are 950 parts per 1,000 are pure platinum .

Simple Platinum Hallmark Guide - Gold-Traders (UK) Ltd

    https://www.gold-traders.co.uk/blog/simple-platinum-hallmark-guide/
    Mar 14, 2011 · Platinum hallmarking was introduced in the UK in 1975 as a result of legislation brought about by the Hallmarking Act of 1973. Prior to this date, items containing platinum would often carry no markings or simply ‘Plat’ or ‘Platinum’ and would be of varying purity. A typical platinum hallmark

Antique and Vintage Jewelry Maker's Marks: A Collector’s Guide

    https://www.invaluable.com/blog/guide-to-jewelry-marks/
    Apr 06, 2020 · When considering platinum jewelry, the purity mark “950” denotes a composition of 95 percent platinum with a mix of other metal alloys, while “900” is made up of 90 percent platinum, and “850” has 85 percent platinum. Maker’s Marks

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