Hi Casey
We make these rings ourselves, our jewelers are very good at making sure the molds are sized proper before casting. I just walked over into the shop myself and measured to make sure there was no error , 7s are spot on. We have sold 100s of these without any issues. If you need a different size we can exchange no problem, you can always reach out directly to customer service with any issues. We dont want you to have a ring that doesnt fit properly.
Thank you