How To Spot Fake Gold Brilliance Jewels Check the weight. gold is characterized by a very high density. a cube of gold with a side of 1 cm will weigh 19.3 grams. therefore, if we know the size and weight of a pure gold coin or bar, we can determine the authenticity of gold. however, we need a very precise weighing scale. Reaction with acid. this is a simple test that uses the reaction of gold with acid to prove its originality. all you have to do is lightly scratch the surface and add a small drop of trioxonitrate (v) acid (hno3). if the jewelry does not react with the acid, its surface remains unchanged, then it is genuine gold.
How To Spot Fake Gold Brilliance Jewels Look at this platinum cartier love bracelet. the fake one has degradation on the surface, while an authentic piece would never degrade over time or in the manufacturing process. here is another example. a 6 diamond white gold cartier love bracelet. the fake one on the left has a fake stamp, which looks different from the authentic one. 1. perform a streak test. rub a sample of the suspected gold or pyrite on an unglazed ceramic tile. a colored streak will be left behind similar to a pencil mark. fool's gold or pyrite will leave behind a greyish streak. real gold will leave a shiny golden streak. 2. test the density of the sample. Fake gold will react with the foundation and leave green or black streaks. 10. unglazed ceramic test. make sure the ceramic is unglazed. rub your gold across the ceramic. if you see gold streaks, then your gold jewelry is pure, but if it leaves a black streak, then it is not real gold. Measured the density of gold by weighing a 5 carat weight of real gold and a fake or base metal gold of same size. real gold tends to be denser at around 19.5 20.5 gms cm³, compared to base metal.
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