In good old Winnipeg:
Top quality = 10 Dollar a gram, 60-65 a quarter, 210 an ounce.
Mids = 10 Dollar a gram, 50-60 a quarter, 190-200 an ounce.
Lows = 10 Dollar a gram, 50 a quarter, 180-190 an ounce.
I never buy lows, they are usually sold at like school or in front of malls or some shit...