Maya has done plenty of builds with it. Off the top of my head, there’s a pet Diviner Defiler and Cabalist out there.
Just had a cursory look around the forums and will admit there haven’t been many Diviner casters posted. Spanks mentioned Safarel’s build which is one of the earliest and has beaten Lokarr. Saw’s Spellbinder also cleared Gladiator 170 just before Forgotten Gods, with the changes to Crucible recently though, someone would have to recreate and test it otherwise.