Not worth it? It's an emerald, and it's super easy to get it - and for 32 sticks, that sounds like a good deal. I'd gladly chop down entire forests to gain emeralds.
Okay, maybe it could be worth hundreds because you might be able to rade that emerald with another villager to make a looping trading (like giving one emerald for a bookshelf and trade that bookshelf for two emeralds)
