It's probably rated by how they purchase it.
A-lot of wholesalers do classifications like, substandard, standard, ultra.
Substandard could be a brown chalice, standard could be a green chalice, ultra could be a green chalice with red eyes or watermelon.
You never know, they may just be claiming what the wholesalers are and not making up 'ultra' on their own.
Sounds pretty good. Vendors are just applying the "grade" they got from when they purchased it from wholesalers.



