Visual Inspection of Gold
One of the most straightforward methods for identifying fake gold is to take the item in question to a jeweler. However, if you prefer to perform the verification at home without visiting a jewelry store, careful observation with the naked eye can be effective. Look for specific indicators such as the hallmark that signifies the carat value or purity, as well as making bite marks on the gold piece. The depth of these bite marks can indicate the purity of the gold.
Another observation method involves noting any changes on the skin. Fake gold might lead to the appearance of black or green spots on the skin where it comes into contact with the metal.
Density Verification
As a valuable metal, gold has been the target of counterfeit attempts aimed at profiting from its high market value. Therefore, it is crucial to have several methods to distinguish real gold from other imitation metals. Gold is known for its high density, so one effective method to identify it is to place the item in a graduated cylinder filled with water and measure the water displacement. The water level should ideally rise close to 19 grams per milliliter for the gold to be considered genuine.
Magnetic Test
Gold, along with silver, is classified as a non-magnetic metal. To test the authenticity of gold, use a magnet and bring it close to the piece in question. If the gold is attracted to the magnet, it confirms that the item is counterfeit.
In some cases, other metals such as copper or platinum may be added to gold to enhance its durability and give it appealing colors. Therefore, the absence of magnetic properties alone does not necessarily guarantee the purity of the gold.
Vinegar Test
This test can easily be performed at home. To conduct the test, take the suspected gold piece and apply a few drops of vinegar onto it. Observe any changes that occur. If the color of the gold piece shifts to a dull hue, it suggests that it is not 100% pure. Conversely, if the gold retains its original color without any noticeable change, this indicates its purity.