You know, I've played Diablo 2 off and on since, oh, 2000. Each time I take at least one character through the game in both Normal and Nightmare mode. Sometimes two, if I'm infatuated with the game long enough. If I'm not playing with friends I already know, I play solo. I venture into Hell when I'm good and ready but honestly, after the resist-fest that is nightmare, I don't get very far.
But in all that time, I don't think I've ever seen a single solitary Stone of Jordan drop or show up in a gamble.