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https://www.jewelrynotes.com/how-to-test-if-gold-is-real/
Real gold jewelry is made of a solid gold alloy, whose gold content is above a certain threshold. In the United States, for example, pieces containing less than 58.3% gold (10 karats) are not considered gold for commercial purposes.
https://www.jewelry-auctioned.com/learn/jewelry-how-tos/how-to-tell-if-gold-jewelry-is-real
The first step to identifying real gold is to look for the hallmark. A hallmark is a stamp on a piece of jewelry that informs the buyer of exactly what it is they’re buying. In most countries, it’s law for jewelers to not only notate the authenticity of real gold, but also the karatage.
https://www.nbcnews.com/better/business/easy-way-tell-if-your-gold-jewelry-fake-ncna780131
Jul 08, 2017 · If it’s real gold it will not stick to the magnet. (Fun fact: Real gold is not magnetic.) Fake gold, on the other hand, will stick to the magnet. If that necklace leaps to the magnet, your...
https://www.superbmelt.com/how-to-identify-gold/
The molten gold is then poured into a kind of crucible known as a cupel. The sample is heated further and the other elemental metals are melted away leaving the gold. The remaining gold can then be cooled down and weighed to determine the amount of the sample which is actually gold.
https://treasurepursuits.com/how-to-tell-if-gold-is-real/
Real gold jewelries are not exactly 100% pure gold as most authentic gold jewelries are mixed with other metals to make it even harder and durable. Fake gold jewelry is made of other metals that are much affordable than gold, which includes silver, nickel and copper. And they are just often plated with gold to make them look like real ones.
https://www.sbcgold.com/blog/test-gold-5-simple-ways-spot-fake-gold/
Jul 24, 2014 · Genuine gold will stand up to your attempt to conduct a nitric acid test at home. Make a tiny mark on the piece of gold to penetrate the surface. Drop a small amount of liquid nitric acid on that scratch and wait for a chemical reaction. Fake gold will immediately turn green where the acid is.
https://www.jewelrynotes.com/find-out-if-your-jewelry-is-gold-plated/
The most common stamp used in gold-plated jewelry is GP (standing for “gold plated”). You may also see GEP, which means “gold electroplated” and RGP (meaning “rolled gold plate”). HGE (for “heavy gold electroplate”) is another mark that indicates gold plating (you …
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