Gold have the tendency to get oxidize but this will not happen very easily. It is because of this gold makes superior accessory to embellish. If a gold jewelry is showing signs of tarnish, then it is might be gold plated but perhaps not pure gold. Rusting occurs when the metal is not pure. Being one of the least reactive chemical compound, Gold alone or pure gold does not get blend with oxygen, it doesn't loses it shine and stays gleamy for long. The higher and authentic the karat of a gold accessory, it is less likely to get rusted.