Despite its in-game description, it doesn't boost gold apparition rate, but "upgrades" all gold drops by one level (e.g.: candles which usually drop $100 now drop $250 ; a Skeleton Glass would drop $400 instead of $250).
Note that you'll never be able to gain more than $400, as it is the highest gold item in the game. Thus, candles or enemies which drop $400 won't drop more with Greed Amulet equipped.
The Greed Amulet is found in the western part of the Castle Treasury in Castle A.
Juste can tirelessly farm gold near the amulet's location, in the vertical room just before the crystal cavern area: there are no enemies around and the gold-dropping candle is near the exit, so he can gain $400 each time by entering the room over and over. There are other "gold farming spots" (the best one being right before the boss room in Skeleton Cave), but this is the first one he'll find after obtaining the amulet and the Merchant is conveniently located just three rooms away.
|Item Data: Greed Amulet|
|Image||Name - Game|
|Type / Users||Attributes / Consume||Statistics / Sell||Found||Notes|
|This amulet increases it's user's luck in finding money.|| Goods|