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https://www.kovels.com/identification-guides/jewelry-identification-guide/jewelry-quality-marks.html
Jewelry is often stamped with quality marks or words that give clues to the age or maker. The type of material helps date a piece.Estimated Reading Time: 1 min
https://cashforgoldusa.com/gold-quality-marks-guide
Apr 02, 2013 · They are called quality marks, and their misuse is actually against the law. So before you buy your next gold ring or necklace, take a look at this guide to ensure that you’re getting the quality that you think you’re paying for. Gold Quality Marks. Karat: This is the unit used to measure the purity of a gold product. It is defined as the mass of the pure gold divided by the total mass of the product, …
https://www.thoughtco.com/metal-jewelry-stamps-and-marks-608017
Feb 12, 2020 · The quality marks or a decimal figure may be used on articles containing a minimum of 92.5% pure silver. Some metals may be called 'silver' when, in fact, they are not (except in coloration). For example, nickel silver (also known as German silver) is an alloy consisting of about 60% copper, about 20% nickel, about 20% zinc, and sometimes about 5% tin (in which case the alloy is called …Estimated Reading Time: 4 mins
https://jewelrymakingjournal.com/silver-and-gold-metal-quality-marks/
Most of these markings are straightforward such as 14k means 14 karat gold and 925 means sterling silver. But sometimes the stampings seen on gold or silver may not be so obvious. Gold is more likely to have an array of different stampings. Gold is measured in …
https://www.ganoksin.com/article/quality-assurance-benchmarks-jewelers/
Quality Assurance Benchmarks for Jewelers by Mark B. Mann Fine jewelry represents much more than its trade value in diamonds, gemstones and precious metals. It is a personal representation of the owner’s lifestyle, status, emotion, recognition, commitment and more.
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