Titanium is the only element possessing the strength of steel, yet with a weight comparable to aluminum.  Titanium has a dark metallic color, but is extremely lightweight.  Titanium is the only element that offers the unique combination of beauty, strength, light weight and biocompatibility.  Titanium will not bend, but

in the event of an emergency, a ring can be removed by a medical professional.  Titanium

is susceptible to scratching and showing wear.