Odd Arcane Blood Gems are a type of Odd Blood Gem in Bloodborne.
- A blood gem that fortifies weapons and adds various properties. Blood gems are especially rare blood stones that grow on coldblood.
- Blood gems are kneaded into weapons using workshop tools, but only when of matching shape.
- Circular blood gems are normally used to fortify firearms.
- Lighthouse Hut:
- In the ground floor of the nearby caves filled with slugs. Surrounded by Snail Women.
- Triangle/Rating 17 - Add arcane ATK+27 / Arcane ATK+8.1%.
- As with all other elemental Blood Gems, Odd Arcane Blood Gems share the same icons as their non-Odd counterparts, the Arcane Blood Gems.