Welcome to HIVE! Never heard of those diamonds before, very interesting, and you are obviously better at finding those than fishing LOL (teasing). I do some treasure hunter too here in the Southwest in Arizona. Placer gold is very common here and I do some gold panning now and again. The diamond thing though, that is super cool!
I would love to find some gold! I'm sure you have seen the gold rush show? And Bering sea gold? What I really want to do is get back out to Nevada for opals in virgin valley. Those things are very nice.