For instance, "600 Pt. ", 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. For example, a stamp that says “S925” indicates that the jewelry is sterling silver. ​Carly Wickell is a writer and jewelry expert. Lay a towel down underneath the stone to protect your work surface from scratches. ", "Well written and interesting to a confused reader. As we are approaching the new millennium and as platinum … If the kit doesn't include gloves, buy some separately. But, unlike gold, platinum is not measured in karats. Both industry experts and jewelry retailers are slowly … Platinum Purity Considered among the most pure and precious metals used in modern -day jewelry making, platinum has become synonymous with luxury and longevity. The DR probably refers to the maker of the jewelry. Well, that certainly tells you something. If it was marketed as platinum, chances are you got ripped off and were sold a silver ring, or the ring is silver and plated with another metal, such as rhodium or platinum. 50Irid." He completed his residency in graduate gemology at the G.I.A. Platinum … That makes the tea 900 parts per thousand of your mix. I believe that the desire for "950" platinum is primarily driven by the fact that 950 is a bigger number than 900 - it looks better in "print" - so it must be "better". Note that a “950 Platinum” mark indicates that jewelry is 95 percent pure platinum, or 950 parts pure platinum out of 1,000. Only rhodium is more expensive than platinum. Hydrogen peroxide won't corrode or damage your jewelry. What does the number 5372 mean on a ring? Wear gloves to protect your hands and work over a towel to protect your workspace. The rest is an alloy, which is mixed with the platinum. Hydrogen peroxide can be found at most grocery stores. As you have read above, the "950" designation doesn't really mean … If you're still unsure about the authenticity of your jewelry, see a reputable jeweler. Here are some important platinum facts regarding content markings: The FTC is currently considering a request to allow manufacturers to mark jewelry as platinum even if it contains metals that are not part of the platinum group. Our Expert Agrees: When you're testing for platinum, you scrape a little piece of the jewelry on a stone, then you drop nitric hydrochloric acid on it. For example, an authentic piece of platinum jewelry might have a stamp reading “PLAT999.". Although some alloys may be billed as platinum by jewelry sellers, there are stringent requirements for what constitutes a 'pure' platinum piece. Choose an inconspicuous part of the jewelry to rub against the stone. 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. Approved. If it’s stamped with the letters PLAT, PT, or the word Platinum, it is platinum jewelry. If your jewelry doesn't have any markings at all it's probably not a precious metal. But how can you determine if jewelry you already own is made of platinum? Platinum is a heavy, precious metal, gray-white in color and noncorrosive. ", "Took silver test solution, and test stick works very well. for 600 parts pure platinum and 350 parts iridium, "550Pt. Jewelry stores who sell high quality platinum offer 950 Grade (95% pure platinum) jewelry. Another way to express that is to say that tea makes up ninety percent of the mix. Platinum is a rare precious metal primarily used to create fine jewelry. Here to help you navigate your platinum jewelry purchase with education and insights into the latest styles from leading experts. Medical Definition of platinum : a heavy precious grayish white noncorroding ductile malleable metallic element that fuses with difficulty and is used especially in chemical ware and apparatus, as a catalyst, … But before you pay your good money for a piece of jewelry, here is … Platinum derives its name from the Spanish word “platina,” meaning “little silver.” If you use the 18-karat gold acid test to test on silver, the line will turn a milky white color. Platinum has come a long way from being a metal affordable only by the elite, being accessible even to middle class patrons. When you select platinum jewelry, you’re buying a product that consists of a metal that’s almost entirely pure – 90-95%. There are also hallmarks that can identify where the item was … If you doubt your results, test the jewelry again to be sure. Buy a kit that can test for both silver and platinum. The metal was first discovered in 1557. By using our site, you agree to our. Because of its hardness and … This article was co-authored by Edward Lewand. The STERLING part indicates that your jewelry is real sterling silver. However, with a little practice, you'll be able to tell the difference in no time! This article received 17 testimonials and 86% of readers who voted found it helpful, earning it our reader-approved status. Is a marking PLAT 950 silver or platinum? The etchings may be on the clasp, a tag, or the largest part of the jewelry. The letters PT and PLAT are often used to indicate platinum is used. Instead, it is measured by its purity percentage. Purity is the percentage of pure platinum that is in your jewelry or item. Don't drop acid on clasps or other important sections. As platinum jewelry continues to gain market share, nearly every jeweler will have contact with this most precious metal. Thank you for the easiest, safest test. There's no question that there are many advantages to choosing platinum over white gold. Jewelry that contains at least 950 parts per thousand of pure platinum may be marked or described as "Platinum". PLAT means platinum, and the 950 means that is it 950/1000 or 95% platinum. Mined from deep within the Earth and … By using this service, some information may be shared with YouTube. What does this mean? Platinum/cobalt alloys will usually be stamped as PLAT, Pt950, or possibly Pt950/Co. wikiHow is where trusted research and expert knowledge come together. ", "The article contained knowledge for future reference. Keep all acids and acid testing kits out of the reach of children. When an item is stamped “925 Platinum,” it means that it is made of 92.5% platinum. Last Updated: February 5, 2020 Edward Lewand is a Graduate Gemologist & Accredited Appraiser with over 36 years of experience in the jewelry industry. Platinum is one of the heaviest metals used to make estate jewelry. "529" probably refers to a maker or manufacturer. "I have always wondered about the metal of a simple bracelet I have worn for over 30 years. Hallmarks are distinguishing characteristics that are stamped on gold, silver and platinum items - typically to identify the items purity. Since about 1900, platinum came into use in a major way in the making and manufacturing of jewelry. The most common alloy used to harden sterling silver is copper, which is not magnetic. This article has been viewed 612,667 times. Also, platinum isn't really white—it's actually a gray color. Platinum is the now-most-sought-after metal especially for engagement and wedding jewellery, particularly for rings. 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. Thanks to all authors for creating a page that has been read 612,667 times. If the line stays, it's platinum. The word platinum … As with most metals for jewelry… No. 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. Graduate Gemologist & Accredited Appraiser. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. 50Ir." All modern platinum jewelry requires stamps indicating metal content. If the solution turns white, the metal is 92.5% silver, or sterling silver. This means that 95% of the content of a piece of platinum jewelry is pure platinum and 5% is another platinum … The metal also looks stunning when combined with contrasting touches of 18K yellow gold. Helped me to understand markings on my jewellery and I looked up the makers and found who made the, "An item of jewelry was given to me as a gift and was described as Platinum. 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