A diamond may also be dropped by any [[Monsters|Monster]] once you have reached the bottom of the Mines. Before reaching the bottom of the Mines, a Diamond may be dropped by a Red or Purple [[Slimes|Slime]], or a [[Duggy]]. A [[Wilderness Golem]] may also rarely drop a diamond (0.1% chance).
Diamonds may also be found in [[Fishing#Treasure Chests|Fishing Treasure Chests]], by [[Copper Pan|panning]], or found in [[Garbage Can]]s after the player has reached level 40 of the mines.
A book in the [[Museum]], titled "A Study on Diamond Yields," contains the following information:
+
"ダイヤモンドの分布研究"というタイトルの[[博物館]]の本には、次のように書かれています。:
−
:''After years of research in the mines, I believe I've learned something about diamond frequency. My research involved only the stones that are scattered about the mines... The ones broken with a pickaxe. Mineral yields from other sources require more research. Diamonds seem to only form at mine level 50 or greater. At level 50, approximately 1 in 500 stones will be diamond-rich.''