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https://www.specialtymetals.com/blog/2016/6/9/how-to-recognize-platinum-when-you-see-it
Jun 09, 2016 · The fact is that over the years, jewelers have applied platinum accents (including filigree and borders) to other jewelry items. So if you come across a piece of gold jewelry that has bright white-metal decorations applied to its surface, don’t assume that those extra touches are made of silver.
https://www.jewelryshoppingguide.com/what-is-platinum/
To know how much platinum is in your alloy, you need to look for the platinum hallmark. A hallmark is a small identification symbol that is stamped on the jewelry, indicating the level of purity of the metal. Platinum used in jewelry, like this ring, is generally of higher purity than …
https://www.leaf.tv/articles/how-to-identify-a-platinum-ring/
If the spoon changes colors and the piece of jewelry does not, it is probable that the ring is made of platinum. Platinum has a very high melting point and will not change colors when it is exposed to heat like other metals. Use a platinum metal test kit. Metal test …
https://aupreciousmetals.com/how-can-i-tell-if-my-items-are-gold-platinum-or-silver/
Feb 18, 2020 · The colors of platinum and silver jewelry are very similar. The most reliable way to tell if your item is silver, platinum or fake is to take it to a certified refiner. If you want to check for yourself, look for the following assay markings:
https://www.leaf.tv/articles/how-to-test-jewelry-gold-platinum-palladium/
To test for platinum, use a magnet. This is the simplest way to test platinum jewelry without causative acids. If the magnet sticks, there is iron in the piece, and the piece is not pure.
https://treasurepursuits.com/how-to-tell-platinum-from-white-gold/
The color of platinum is naturally white. Platinum jewelry contains 90% to 95% of platinum and the remaining 10% to 5% is mixed with an alloy such as iridium or ruthenium. These alloys are generally used to harden the metal. The fineness of platinum is marked with.900 or marked as.950.
http://www.sellgoldhq.com/how-to-spot-fake-platinum/
There’s no “steel pyrite” substance out there that purports to be platinum, after all, and platinum is already hard enough to tell between itself and silver. How can you be sure that you’re purchasing a valuable piece of jewelry, or a valuable commodity, without having any fear that you’re being swindled.
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