Blood Gem Imprints are part of Bloodborne's advanced weapon upgrades.
Each weapon comes with Blood Gem Imprints, which acts as infusion slots. Trick Weapons usually have 3 slots, while Firearms mostly have 1 slot.
- Imprints decide which shape of Blood Gems the weapon can be infused with, but Droplet shaped Blood Gems will fit into any slot.
- Imprints are unlocked by fortifying the weapon. Fortify to +1 unlocks the 1st slot, +3 the 2nd slot, and +6 the 3rd slot.
- Most Trick Weapons also comes in 3 different varieties; Normal, Uncanny and Lost. The Uncanny and Lost versions are found in Chalice Dungeons, and the only difference between them are the Imprint slot shapes.
- Generally speaking, all types of right-hand weapon gems share from a loot table of similar possible effects. Without farming gems, frequency patterns of stat boosts versus attack-type modifications can be seen through collecting during normal play.
|Name & Icon||Useable Gem Shapes||Notes|
|The circle imprint is only embedded in guns, thus the cursed droplet gem negative effects "increase stamina cost" or "WPN durability DOWN" have no ill effect.|
Below is a colorcoded image with where and how to read the imprint information on the upgrade menu.