Titanium Rings were first introduced to the jewelry industry in the 80's. The rings are silvery gray in appearance, have the strength of steel but are considerably lighter (compared to aluminum). This light weight metal is a perfect choice for a ring because it resistance to acidity (unlike gold and silver) its appearance stays the same over time. If you have sensitive skin you may want to try and wear a titanium ring. There are great titanium engagement rings and titanium wedding rings.