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| Blood Gem realm | |
| Continuity: | DC Universe |
| Category: | Dimension |
| Residents: | Bloodwynd Rott |
| 1st appearance: | Justice League America #76 |
The Blood Gem realm is a fictional dimension featured in comic books published by DC Comics. It is associated with the Justice League of America line of titles and first appeared in Justice League America #76 in July, 1993.