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https://www.consumer.ftc.gov/articles/platinum-gold-and-silver-jewelry
7 rows · Marketers describe or mark platinum to show the percentage of pure platinum in the piece. To ...
https://www.jewelryshoppingguide.com/what-is-platinum/
Platinum used in jewelry, like this ring, is generally of higher purity than gold. Some common platinum hallmarks are: 950 Plat or 950 Pt. - The metal is at least 95% pure platinum and 5% alloy metals. 900 – 90% platinum purity and 10% alloy metals. 850 Plat or 850 Pt.
https://www.liveabout.com/platinum-jewelry-information-2043747
Aug 17, 2017 · As long as 50% of the alloy contains platinum and some other combination of metals above, the piece can be labeled as containing platinum. If for instance, jewelry contains 50% platinum and 50% gold, that piece can not contain a hallmark indicating the piece contains platinum.Estimated Reading Time: 3 mins
https://www.gemsny.com/blog/why-platinum-jewelry-is-more-expensive-than-gold-jewelry/
Jul 28, 2021 · When these metals are converted into jewelry – 95% of pure platinum is used and 5% of other alloys are used. This is because Platinum in itself is a harder metal. On the other hand, pure gold or 24k gold is softer and so to make it harder, and to be used as …
https://www.transparencymarketresearch.com/platinum-jewelry-market.html
Platinum has been found to be as viable in jewelry as gold and silver. Platinum jewelry is rarely 100% pure platinum, as it is commonly mixed with similar metals or other base metals, and hence the higher the percentage of pure platinum, the higher the value of the jewelry.4/5(37)
https://platinumjewelry.com/why-platinum/pure/
When you select platinum jewelry, you’re buying a product that consists of a metal that’s almost entirely pure – 90-95%. Mined from deep within the Earth and transformed for jewelry use with a minimum of other ingredients, platinum’s luster, strength and durability are legendary. But its purity—used in the finest jewelry at a ratio of 950 parts per thousand—makes platinum the finest metal available on the market …
https://www.bluenile.com/education/metal/platinum
Platinum jewelry is very rare; in fact, 30 times more so than gold. Our platinum is 95% pure (5% iridium, palladium, ruthenium, and other alloys), and its purity makes it naturally hypoallergenic, ideal for those with sensitive skin issues. How to Maintain Platinum's Metal Luster
https://quickjewelryrepairs.com/articles/is-platinum-jewelry-worth-buying/
Platinum is ranked as the top metal out of all of the silvery-white jewelry metals, and with good reason. Its color does not change, and jewelry-grade platinum is commonly rated as 90-95% platinum content. In contrast, other metals such as white gold may only contain about 40 to 50% gold content, and the color of white gold is actually not white!
https://www.georgianjewelry.com/blog/iridium-platinum-explained
It gives platinum an even harder-wearing durability. Usually jewelry and rings are often 10% iridium and 90% platinum. Hallmarks that you may find are 10 Irid 90 Plat, 100 Irid 900 Plat, 10% Irid 90% Plat, or other variations. Just a few examples are shown below.
https://www.ganoksin.com/article/manufacturing-jewelry-platinum/
Platinum casting. The weight of platinum castings will be about 30% higher than for 18 karat gold. The weight of casting trees are between 100-3000 gr, in average 300 gr. Different tree and sprue design, regarding on total different feeding behaviour. Centrifugal spin-casting machine required, torch or induction melting.
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