If you have your own photo to use for the photo frame, then yes, you can order a photo frame only, but this is not recommended. The back of the photo frame is sealed and you will need to remove the backing in order to insert your own.
You still need to follow the steps to create a project, but ignore the warnings and leave the image blank and add it to your cart.
The pricing will remain the same. The price will not be discounted without the photo included.