Really beautiful ring with what I'm 99% sure is labradorite -- Though the pepper lights up like Christmas tinsel in the right light, which I've never seen in labradorite before. Can you help with the hallmark? http://i.imgur.com/Cg301SL.jpg http://i.imgur.com/GbYceXo.jpg http://i.imgur.com/dDlOpXu.j...