Add spices to vodka in a covered, non-reactive container (glass or plastic) and allow to sit for two days at room temperature. Strain spices.
Bring sugar, water, and pomegranate arils to a simmer in a saucepan until all the sugar is dissolved.
Allow to sit overnight in the fridge. Strain out pomegranate.
Combine pomegranate syrup to the spiced vodka. Add another 80-100ml water to taste.
Store in an air-tight, non-reactive container at room temperature.