Sell to vendor wrong item while server lagged

Good morning,i have some problem
I went to vendor to sell some items,and then server start to lagg.I've waited some time and then want to relog,I click "logout" but nothing happens and then i notice that i sell WRONG item to vendor
It was an orb,i don't remember full name but I remember that it have +19 critical strike rating but don't remember the other stats
I even can't buyback it because it's showed like item was in the inventory,but actually it was SELL
But it was too late...Server start to work,lagg disappeared and game logout becouse i clicket that many minutes ago
And now vendor log is blank and i can't buyback my orb.What shoud i do?(((

There is no hope, your item fell into abyss and your spirit will follow as the world gets darker and darker, hurtling towards inevitable heat death of the universe.