So you call it a gem, and then you don't. A Ruby is a gem, and Uragaan has always had one since 3. Aside from that every point you make is subjective, Uragaan is the only pure ore/rock based monster in world, so biologically it makes more sense to have a gem for Uragaan then any other monster, outside of gameplay reasoning. Most people consider him harder/more intimidating then the more annoying Lavasioth at least anyway. I didn't realise this monster upsets you so much, my regards.