I have a Titanium ring I ordered from Titanium Era
. 8mm, comfort fit. Th "outside" has a 2mm polished bevel on each side, then the middle 4mm ar brushed. I like it a lot. Very comfortable, VERY light, and hey, if my hand ever got caught in a hydraulic press, it's made of aircraft grade Titanium 6.4 (6AI/4V). Has tensile strength of 150,000 psi, and a Brinell hardness value of 330
For comparison, Gold has a tensile strenght of 18k psi, and Platinum is 20k psi.
It's a very nice, clean look, and it was CHEAP. Since it's not considered a "precious metal", it was only around $230 or so. Lots of people notice it and like the look. And they always trip out at how light it is.