Titanium is a highly durable and corrosion-resistant metal, which means that it does not rust or tarnish in the same way as other metals such as iron or silver. However, titanium can develop a natural oxide layer on its surface over time, which can give it a slight blue or grayish tint. This oxide layer is actually a protective layer that helps to prevent corrosion and wear, and it can be polished or refinished to restore the original appearance of the metal.

In addition to its natural resistance to corrosion, titanium is also hypoallergenic, lightweight, and strong, which makes it a popular choice for jewelry, watches, and other accessories. It is often used in combination with other metals or materials, such as gold or diamonds, to create unique and durable designs that can withstand everyday wear and tear.