The natural color of titanium is grayish and looks similar to stainless steel. Titanium has a high strength-to-weight ratio and is relatively light. Without sacrificing durability and strength, titanium is 45% lighter than gold. Stronger than steel, titanium can take a beating against every day wear and tear.

Titanium is marketed as being scratch-resistant, however with normal wear small scratches and scuffs will appear. Although titanium is extremely hard and very durable, some abrasive materials such as sand and rocks can scratch the surface. However, these scratches are not permanent any local jeweler in can polish off those scratches. With a little polishing, titanium looks like new.

Unlike many popular metals, titanium is an inert metal and is not chemically active. This prevents titanium from tarnishing or oxidizing over time. Because of its inertness, titanium is completely hypoallergenic and is a perfect choice for people with gold or silver allergies. 

Titanium rings are constructed from solid bars of titanium, which results in a perfectly seamless, round ring. Due to the hardness of titanium, it is more difficult to cut and shape than other popular metals. Because of the unique nature, it is nearly impossible to re-size a titanium ring.

More Info: Titanium Properties and Characteristics