Gem Farming Issue

I use a shadow form/silver armor build, i go in kill one get out and i have killed them at least 34 times, but i have not got *one* gem drop . Am i doing something wrong by just killing one at a time or is it something else. Maybe i just have bad luck , but If anyone knows whats going on or has any tips i'd like help.

Gem drop as in, a gem from Domain of Anguish?

So. I'm not sure what you are saying but..

1. If your saying that you always TELEPORT back to town then go back out to kill ONE monster, you totally aren't gonna get a single gem.
2. If your clearing out the most you can, 1 by 1, the most I can say for you is... keep trying if you really want gems. There's other builds better then the shadow form. And yes, its just bad luck.

Yeah, she's using the "teleport out of aggro when SwFm ends" routine. Maybe bad luck Karomi, or perhaps you have done it a bit too much. Try changing up your farming a bit to some other place for a day. Then retry. Farming code may have kicked in on you.