Few days late but it's finally done!
The gauntlet's default size measures at around 50cm tall (not including the base) which I believe is the same size as the Marvel Legends replica. When making the infinity stones, I would recommend casting them in a clear and glossy material like resin so that light can shine through.
The model was created in Blender, using reference images mainly from both the Marvel Legends, and Hot Toys replicas.
I also have not printed this file myself just yet, so please let me know if you have any issues. :)