Girlfriend (24f) wants to break up cause I (26m) bought her a too cheap birthday gift

I've been dating this girl for 3 years. I love her so much and she told me she loves me too. She's amazing and I want to marry her one day. We always have so much fun together and never had any big fights. <br><br>Her birthday was yesterday and she celebrated it with her family and some friends. I give her a box with a beautiful gold necklace (design was inspired by our favorite show). It was made by a friend who studied jewelry design. She opened the box and seemed extremely disappointed. She told me "this is your gift?" and said that she was just expecting something else.<br><br>I asked her what she wanted and she said a pair of earings that costs around $400. I apologized and said that I'm sorry, that I did everything by myself and it was my first ever self-made gift. She then said that she wants to break up, because she sees how other girls get treated by their boyfriends and that she deserves more. She said that she "felt sorry for herself" after I gave her my present.<br><br>I asked her if she's really 100% sure about breaking up and she said yes. She said that her parents are upset too, because she told them about my gift and they think I'm a bad boyfriend. I don't know what to do. She blocked me on everything but I really want her back. Should I buy her a pair of earings to show her how much I love her and that I'm willing to try harder? I'm really heartbroken rn<br><br>Tldr: my girlfriend wants to break up with me because I gave her an expensive gift that was made by a friend of mine