Diamonds are one of several Artifact currencies that can be earned within the Underworld. Along with Titan Blood and Ambrosia, they are a resource obtained via bounties. They can be used to purchase higher tier upgrades from the House Contractor, such as a Music Stand for listening to music, progressing character favors, or bonuses for picking up resources in escape attempts.
Diamonds are used to:
- Purchase Work Orders from the House Contractor (52 )
- Purchase ranks from the Resource Director (10 )
Diamonds are earned through 7 sources:
- Defeating the Bone Hydra for the first time with each weapon (6 )
- Bounties for defeating the hydra for the first time with each weapon at each heat level up to 20 heat (120 )
- Rewards from the Fated List of Minor Prophecies (33 )
- Trades with the Wretched Broker
- Dropped from Poseidon's boon Sunken Treasure (0.3% chance)
A total of 159 can be obtained through defeating bosses and fulfilling prophecies from the Fated List.
The Wretched Broker can be used to buy Diamonds through: