Piercings can be made from various metals or materials, and each of these can have different colors. For example, gold piercings can be red, yellow or white, silver piercings can be gray or white. Additionally, piercings decorated with artificial stones such as zircon, crystal or other stones can also be in different colors.
Also, other metals such as titanium or stainless steel can be used and they can also have different colors. For example, stainless steel piercings can be black, gray or bronze. In addition, some piercings can be made of plastic, glass or organic materials. These materials have more color options and can be in various colors.