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https://www.wikihow.com/Identify-Platinum-and-Silver-Jewelry
Jul 14, 2021 · If it’s stamped with the letters PLAT, PT, or the word Platinum, it is platinum jewelry. If you can't read the markings on your jewelry, or there aren't any, read the article for tips on testing jewelry with an acid testing kit, a silver testing solution, or hydrogen peroxide.
https://jewelry.lovetoknow.com/about-jewelry/understanding-markings-jewelry
From metal content to manufacturer, your jewelry markings can give you a clue about the value and history of your favorite pieces. Metal Content. Many jewelry marks represent the metal content of the piece. This is important because silver-plated and sterling silver items look virtually identical to the untrained eye. ... "Plat" or "platinum ...
https://www.leaf.tv/articles/how-to-identify-jewelry-markings/
Remember that jewelry marked “900 Platinum” is 90 percent pure platinum, or 900 parts pure platinum out of 1,000. Look for any of these other marks to indicate this type of jewelry: “900 Plat,” “Plat 900,” “Pt900” and “900Pt.”
https://www.gemsociety.org/article/jewelry-metals-overview/
In addition to platinum, this group includes iridium, osmium, palladium, rhodium, and ruthenium. While platinum is the most abundant, all these metals, except osmium, have jewelry applications. Rhodium frequently sees use as a non-tarnishing plating for white gold, silver, and other platinum group jewelry …
https://www.sellyourgold.com/faq/my-items-gold-silver-or-platinum
It can be difficult to know if your items contain gold, silver or platinum. But, don't worry, there are a couple of things you can do to determine your item's metal type. Don't be discouraged if you cannot find a specific marking or the test you are performing does not work. You are not a trained professional jewelry …
https://bellatory.com/fashion-accessories/750-585-417-gold-markings-jewelry
Jul 23, 2021 · What Gold Jewelry Markings Mean. Okay, back to gold markings. Look at the table below. It displays all common gold jewelry markings, along with their meanings. So for each gold variety, it lists the fineness and karatage markings; any piece of jewelry …
https://www.wikihow.com/Identify-Quality-in-Platinum-Rings
Jun 16, 2021 · Platinum is the high-quality standard for wedding bands, engagement rings, and other fine jewelry. Its durability, natural white-silver finish, and density make this rare metal desirable in rings for both men and women. However, platinum...
https://www.invaluable.com/blog/guide-to-jewelry-marks/
Apr 06, 2020 · From contemporary pieces to antique jewelry, letter markings on gold jewelry, silver, and other metals can offer useful insight on the materials, epoch, and producer of a piece. Silver and gold jewelry markings are commonly known as purity marks, maker’s marks, symbols, or date letters.
https://en.wikipedia.org/wiki/Platinum
Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.Its name is derived from the Spanish term platino, meaning "little silver".. Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements.It has six naturally occurring isotopes.
https://www.jewelrynotes.com/marks-18-karat-gold/
Although it looks like gold, such jewelry is gold plated. More: Check out this selection of gold-plated jewelry. The most common mark for gold-plated jewelry is GP or G.P. If you see a stamp such as “18K GP”, this is an indication that the item is only plated with 18-karat gold, not made entirely of it. Other marks that denote gold plating are:
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