This will be her first pair after the originally earrings were placed while piercing.
I would get sterling or gold. No nickel or fake jewelry for a while bc she’s so small and could have an allergic reaction. My daughters ears are Pierced and I had them pierced with 14 karat and her new earrings are 10 karat I haven’t had any issues.
I agree with Adrienne at such small age you should always go with the best earrings (metals) toys like Fisher prise car seats ec.