It is a mitzvah for parents to educate their children in Torah, middos, jobs, and work ethics. Especially for girls, Gemora in Kiddushin calls to beautify them for marriage. So, teach her beautiful middos and prepare her for a job that will let her buy herself jewelry.
Find your daughter a job in your town, make sure she works honestly, find a private teacher or teach her yourself in things she needs and wants to learn; compensate her lack of fun with trips to EY and other places. Explain to her that the name of the seminary is used in shidduch resumes to reject people who go to a “wrong” type. Instead, she will be asked “why didn’t you go to seminary” – and you’ll explain and refer to the Talmid or Talmidah chachoma that taught her and knows her so well, and families who do not understand this will happily reject themselves, reducing your workload.