This is covered in https://docs.microsoft.com/azure/cosmos-db/gremlin-support https://docs.microsoft.com/azure/cosmos-db/gremlin-support. You can specify a part

This is covered in https://docs.microsoft.com/azure/cosmos-db/gremlin-support https://docs.microsoft.com/azure/cosmos-db/gremlin-support. You can specify a partition key for your graphs for scale out, and access vertices and edges using the partition key + item key ("id") like g.V(['USA', 'Seattle']).