Graves Runes explained
There's one set of runes for Graves on patch 15.14 that is the clear favorite for LoL players and pros alike. The best Graves rune paths on the position 
Jungle are 
Domination as the primary path and 
Precision as the secondary path with a pick rate of 65%. Besides picking runes on Graves you should learn how to play Graves and if you are interested in pro matches take a look on how a pro builds Graves. If you want to discuss 
Graves then you should visit the champion subreddit.
Graves runes from primary path
Domination improves burst damage and assassination tools on Graves. Most of high elo players – and our LoL pros in the the major regions – have agreed that 
Dark Harvest is the best keystone rune to run on Graves. This keystone rune gives you additional damage throughout the match. Other primary runes on Graves are 
Sudden Impact, 
Grisly Mementos and 
Treasure Hunter.
Sudden Impact increases your damage after dashing or being invisible. This is due to how easy it is to activate on Graves with the amount of ways he has to dash, jump or going invisible. The additional lethality helps to take down the priority targets that much easier. Treasure Hunter is the final rune of the Domination path. This rune gives Graves additional gold for takedowns. The additional gold is nothing to scoff at and can mean the difference between winning or losing a battle. Graves will gain an additional 70 gold for the first takedown. Graves acquires Bounty Hunter Stacks, which Graves may use to get more takedowns. This rune's power will grow tremendously, and Graves will become wealthy like never been before. Each time a fresh stack of Bounty Hunter Stacks is consumed, Graves will get an additional twenty gold.
Graves runes from secondary path
When it comes to your secondary path, most Graves players prefer to go with Precision. Precision improves attack and sustained damage on Graves troughout the match. On the Precision path, the best runes for Graves are 
Legend: Alacrity and 
Triumph.
Legend: Alacrity grants additional attack speed to Graves. Triumph restores on Graves a part of missing health and award bonus gold, if a champion is killed.
FAQ for Graves Runes
Which is the best keystone rune on Graves?
The best keystone rune on Graves is Dark Harvest. This Graves runes setup is then referred as Graves Dark Harvest.
What runes does Graves use?
Runes from the paths Domination and Precision are the most used runes on Graves. For the exact pick rates of Graves runes used, you have to study the rune distribution presented.