Use a pickaxe to mine diamond nodes in the Mines
Break gem nodes that can drop diamonds
Kill monsters that may drop diamonds in the Mines
Open geodes at Clint’s blacksmith shop for a chance at diamonds
Use bombs to destroy rocks and expose gem nodes faster
Check treasure rooms and reward chests in the Mines
Use the Burglar’s Ring to increase monster drop chances
Mine deeper levels where gem nodes are more common
Use a better pickaxe to break rocks and nodes faster
Look for diamonds in Frozen levels and gem-rich areas