Will gold jewellery stick to a magnet?

Gold is a non-ferrous metal, which means it does not contain iron, and therefore, it will not stick to a magnet. Magnets are commonly used to test the authenticity of gold jewellery, as pure gold is not magnetic. However, this test is not always accurate, as gold jewellery is alloyed with other metals such as copper, nickel or silver, which can make gold jewellery magnetic.

Additionally, it's important to note that some gold-plated or gold-filled jewellery may contain a small amount of iron, which can make them stick to a magnet. While this does not mean that the jewellery is not made of real gold, it may indicate that it is not solid gold.

To determine the authenticity of gold jewellery, it's recommended to take it to a professional jeweller or goldsmith for testing. They can perform a variety of tests such as acid testing or X-ray fluorescence, which can determine the purity and authenticity of the gold jewellery.

In conclusion, pure gold is a non-ferrous metal and will not stick to a magnet. However, gold jewellery that is alloyed with other metals or gold-plated/gold-filled jewellery may stick to a magnet, it's not an accurate way to determine the authenticity of the gold jewellery. It's recommended to take it to a professional jeweller or goldsmith for testing.