Wish has some decent stuff. My girls dont really wear jewelry outside of their everyday pieces so I knew they wouldn't be appalled by something simple. Got all 5 setsfor like $10 including shipping and they are perfect! Depends on your preference and vision, but decent cheap stuff.
Do you live near a major city with a jewelry district? I live near NYC and went to a silver dealer in the jewelry district and was able to get some beautiful sterling silver with CZs for under $20 a piece (got earrings and bracelets).