FI likes a tungsten ring with carbon fiber inlay. We liked one at the jeweler that was $300. But, I go online and see something very similar for under $100. Does anyone know if there's a good reason for the price difference? Any good research on it? All I've really found online is that some tungsten rings have cobalt that can tarnish easier and is cheaper in the alloy rather than nickel, which is apparently better and more expensive. As much as I really want to support my locally owned and operated awesome jeweler, if there's no significant quality difference between the price points, we're buying his online.