Efaunt Hipilium is a Legends of Idleon item: recipe.

Efaunt Hipilium | Idleon Toolbox

Efaunt_Hipilium

A piece of Efaunt's tunic. I guess it must have gotten torn off while you were absolutely obliterating them with big time Damage.

Ripped_Tunic

It's a bit small, so it's not quite an hourglass, is it.

Minuteglass

The full filtration process also involves filtering the diamonds through a vat of diamonds before using those filtered diamonds to filter the water! If only they'd filter their filtration process through diamonds so this item description wouldn't be so long.