Gemstones are valuable items dropped by certain monsters. They are not consumable, but have other important uses. You can often buy them at the ManaMarket or from other players.

There are 6 types of gemstones:

• 

  Diamond
• 

  Ruby
• 

  Emerald
• 

  Sapphire
• 

  Topaz
• 

  Amethyst

Uses

• 25 Rubies and 20 Diamonds are required in the Love Triangle Quest
• Heathin requires Gemstones to craft a Simple Ring to a Gemstone Ring
• Malek requires Gemstones to craft Gemstone Powders
  • Gemstone Powders are needed to color the Hitchhiker's Towel
  • 1 Amethyst Powder and 3 Sapphire Powders are required for the quest about The Illia Sisters

Sources

Diamonds are dropped by:

• Bluepar (0.5%)
  • White Slime (0.2%)
  • Moggun (0.2%)

Rubies are dropped by:

• Red Slime (0.2%)

Emeralds are dropped by:

• Nutcracker (2%)
• Demonic Mouboo (0.5%)
• Green Slime (0.2%)
• Angry Green Slime (0.2%)
• Terranite (0.2%)

Sapphires are dropped by:

• Vicious Squirrel (0.5%)
• Blue Slime (0.2%)
• Terranite (0.2%)

Topaz are dropped by:

• Yellow Slime (0.2%)

Amethysts are dropped by:

• Wicked Mushroom (0.5%)
• Terranite (0.2%)