Searching for "Emerald" returned 18 results:
Item (Object, tool or key), Resident Evil 3: Nemesis
Treasure, Resident Evil 4
Treasure, Resident Evil 4 Remake - Separate Ways
Treasure, Resident Evil 4 Remake
Treasure, Resident Evil Revelations 2
Key item (Desperate Times), Resident Evil Outbreak File #2
Treasure, Resident Evil 5
Item (Object, tool or key), Resident Evil Remake
Gameplay, Resident Evil 3: Nemesis
Item (Key item), Resident Evil 3 Remake
File (The Hive), Resident Evil Outbreak
File (Request), Resident Evil 4 Remake