Blood diamonds are the the rarest type of Gems, which may be found at random times, found within Chests and looted from the Gem Goblin. They cannot be used to slot Tools to upgrade them.
| Image/Gem | Rate (Per Tick) | Rate (Per Day) | Average Gems / 100 Days |  Sell to Game Shop
| |
|---|---|---|---|---|---|
|
|
Blood diamond |
| |||
Gems 
|
|---|
 Sapphire •  Emerald •  Ruby • Diamond •  Blood diamond •  Dark Diamond
|