What is the difference between anodized gold and gold plated?

When it comes to adding a sense of sophistication and luxury to metal surfaces, anodized gold and gold-plated finishes are two popular options. These finishes are commonly used in the production of high-end jewelry, electronics, and architectural hardware. However, despite their similar appearance, anodized gold and gold plated finishes are actually quite different in both application and performance. Let's start with the basics. Anodizing gold refers to the process of creating a layer of golden oxide on the surface of the metal through an electrochemical process called anodizing. This process increases the thickness of the natural oxide layer on the metal, giving it a durable and corrosion-resistant surface. Gold plating, on the other hand, involves depositing a thin layer of gold on a metal surface through electroplating, where an electric current is used to coat the metal with a layer of gold. Anodized gold and gold plated finishes also differ in application. Anodizing is typically used on metals such as aluminum, titanium and magnesium, while gold plating can be applied to a wider range of metals, including copper, silver and nickel. This means that anodized gold may have a more limited choice in terms of the types of metals it can be used on, whereas gold plating offers more versatility. There is also a cost difference between anodized gold and gold plated finishes. Anodizing is generally a more cost-effective process than gold plating, making anodized gold a more economical option for those wishing to achieve a gold finish on metal items.