you should be able to tell the difference between stress weed and bomb weed; stress goes $5 for about 2.5 grams and bomb goes $20 for about 1 gram. If you pay $20 for a gram of stress weed, you got ripped out the ass. See, smell and feel before you buy.
stress weed (or schwag) usually comes compressed, in bricks, can be any color from light ass green to dark brown, usually the lighter green is the best schwag. Always has seeds and stems.
bomb, is everything else you see on the net, generally no seeds because the growers want them or dont let the females lose their virginity, almost never compressed and is sticky, covered in thc and smells powerful.
You will also see mid grade, it looks like bomb, but less thc crystals, so less sticky, smells good, usually has seeds, better bang for your buck if you smoke stress. The name pretty much tells it all.
Idk if you already knew all that or how long youve been smoking, but its still useful info
