Platinum vs Silver Value. These six related metals belong to the Platinum Group of Metals, or PGM: As long as 50% of the alloy contains platinum and some other combination of metals above, the piece can be labeled as containing platinum. This article was co-authored by Edward Lewand. He is a Certified Appraiser of the Appraiser Association of America (AAA) and an Accredited Senior Appraiser (ASA) of the American Society of Appraisers In Gems and Jewelry. No. 350Pd. ", "Very helpful in determining if items are of value when disposing of them. The .925 stamp is reserved for sterling silver, and refers to the silver content, at 925/1000 or 92.5 percent silver. Acid can burn your skin and is fatal if ingested. Platinum's natural white luster provides a rich backdrop for diamonds and can even make diamonds appear whiter than they really are. Its heavy weight and durability make platinum a metal that will not wear away with constant use like gold. He completed his residency in graduate gemology at the G.I.A. Pure silver jewelry is rare as pure silver is soft and easily damaged. Platinum derives its name from the Spanish word “platina,” meaning “little silver.” Hallmarks are distinguishing characteristics that are stamped on gold, silver and platinum items - typically to identify the items purity. Platinum is a precious heavy metal. He completed his residency in graduate gemology at the G.I.A. Platinum is the rarest and most expensive of the precious metals. Hydrogen peroxide can be found at most grocery stores. Wear gloves to protect your hands and work over a towel to protect your workspace. Common Platinum Jewelry Hallmarks Just like gold, platinum is measured by its fineness. If it dissolves, it's not. Jewelry that contains at least 950 parts per thousand of pure platinum may be marked or described as "Platinum". For instance, "600 Pt. The rest is an alloy, which is mixed with the platinum. Think about it like this: you mix up a huge bucket of fruit tea that contains 1,000 ounces--900 hundred of the ounces are plain tea and 100 are fruit juice. I have a silver bracelet with marks "Italy" and "925". Since about 1900, platinum came into use in a major way in the making and manufacturing of jewelry. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. … When you select platinum jewelry, you’re buying a product that consists of a metal that’s almost entirely pure – 90-95%. or 600 Plat. Instead, it probably refers to the brand or manufacturer. Determining the Alloy Metal Quality Find out what metal the platinum is mixed with. For example, a stamp that says “S925” indicates that the jewelry is sterling silver. If you use the 18-karat gold acid test to test on silver, the line will turn a milky white color. Identify this type of jewelry by any of these other marks: “Plat 950,” “Pt950,” … "DR STERLING" is stamped on the back oan a silver and onyx pendant I bought in New Mexico years ago-any meaning on the DR? Thanks to all authors for creating a page that has been read 612,667 times. The platinum group of metals (PGM) are platinum, iridium, palladium, ruthenium, rhodium and osmium. Typically, you'll find metal content stamps near the clasp on necklaces and bracelets, on the inside surface of rings, and on the backs of earrings, pin… Because of the purity of platinum, it is suitable to all skin types, no matter how … If you doubt your results, test the jewelry again to be sure. The most common alloy used to harden sterling silver is copper, which is not magnetic. Here to help you navigate your platinum jewelry purchase with education and insights into the latest styles from leading experts. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. or "550Plat. He is a Certified Appraiser of the Appraiser Association of America (AAA) and an Accredited Senior Appraiser (ASA) of the American Society of Appraisers In Gems and Jewelry. Platinum is one of the most popular metals of choice for ring settings, because the strength and color of platinum … 350 Ir." 350 Irid." Don't drop acid on clasps or other important sections. When an item is stamped “925 Platinum,” it means that it is made of 92.5% platinum. Note that a “950 Platinum” mark indicates that jewelry is 95 percent pure platinum, or 950 parts pure platinum out of 1,000. This article has been viewed 612,667 times. Platinum has come a long way from being a metal affordable only by the elite, being accessible even to middle class patrons. Approved. References Platinum/cobalt alloys will usually be stamped as PLAT, Pt950, or possibly Pt950/Co. Jewelry stores who sell high quality platinum offer 950 Grade (95% pure platinum) jewelry. Each piece is stamped to mark its metal content, and you can also use the … We use cookies to make wikiHow great. This article received 17 testimonials and 86% of readers who voted found it helpful, earning it our reader-approved status. ", How to Identify Platinum and Silver Jewelry, https://www.youtube.com/watch?v=MiGrtLoJ2dY&feature=youtu.be&t=71, https://www.zales.com/jewelry101/index.jsp?page=preciousMetals, https://www.consumer.ftc.gov/articles/0294-platinum-jewelry, http://blog.stuller.com/working-with-platinum/?utm_source=Platinum_questions, https://www.pricescope.com/journal/overview_common_alloys_used_jewelry, https://www.youtube.com/watch?v=xQHoiWF7TkE&feature=youtu.be&t=127, http://www.danaraejewelry.com/is-my-sterling-silver-real.html, https://www.youtube.com/watch?v=MBseKUZ0OvA&feature=youtu.be&t=111, https://www.youtube.com/watch?v=xQHoiWF7TkE&feature=youtu.be&t=148, https://www.youtube.com/watch?v=MBseKUZ0OvA&feature=youtu.be&t=262, https://www.youtube.com/watch?v=sbFPreBkjQU&feature=youtu.be&t=28, http://www.chemicool.com/elements/platinum.html, https://www.youtube.com/watch?v=i6JQZGSyzuk&feature=youtu.be&t=23, https://www.youtube.com/watch?v=5uAonn4T-Us&feature=youtu.be&t=80, Riconoscere Gioielli di Platino e d'Argento, отличить платиновые украшения от серебряных, identifier un bijou en platine ou en argent, Bestimmen ob ein Schmuckstück aus Platin oder Silber ist, Mengidentifikasi Perhiasan Platinum dan Perak, Platin ve Gümüş Mücevherler Nasıl Tespit Edilir, consider supporting our work with a contribution to wikiHow. 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