From the webpage:
Neography is a thin Ruby wrapper to the Neo4j Rest API, for more information:
If you want to the full power of Neo4j, you will want to use JRuby and the excellent Neo4j.rb gem at github.com/andreasronge/neo4j by Andreas Ronge
A complement to Neography is the Neology Gem at github.com/lordkada/neology by Carlo Alberto Degli Atti
An alternative is the Architect4r Gem at github.com/namxam/architect4r by Maximilian Schulz
For all you Ruby hackers out there!