There's several uncertain knowledge for people when farming rift of chaos. Here my method proven to improve the drop, gotten ahkrads and jewels, RNG based, but increasing the chances:

-Use t3 for vials consume, exp in rift is way better than regular maps
-Soups (advanced and normal buff) and spoils fortune scroll do work in rift. Soups increase slightly the rates and the fortune scroll reduce the time for pets to pick up spoils of battle.
-HT doesn't work in rift. Nor bells or scrolls work in rift so avoid to use it and try to farm when there's no bells
-Park in a violent mob spot. This will increase the amount of spoils gotten in the same time
-Use outlaw if you can. As for fortune scroll, outlaw reduces the time to find spoils of battle, and exp buff also works in rift.
-Hunt violent mobs manually if possible, like parking improves the amount of loot, but since it's active hunting it can get to double your drop in the same time, highly recommended.
Even tho ahkrads and jewels can drop, measure your loot on knots, exp scrolls and pages/lapis chests. That's what you should be looking for when farming rift, Ahkrads and jewels will always be an extra.

Have fun and hope this help y'all to make rift of chaos even more worth it

Devоurer - America