I ended my relationship with my mom. Is it justified?

My mom has been so mean to me my whole life. She’s said really mean things, accused me of being this or that, not thinking properly my whole life..as I’ve gotten older we’ve had spurts of getting along every well, talking everyday at points in my life after I got married and had kids.. im 33 now...Fully grown, married, happy.. own a successful business that is now doing much better since COVID etc.. I make a lot of money.. and we are stable..when I was a young girl, there were times in my life I couldn’t afford milk, bread, eggs etc.. I would pawn my guitar and pay it back.. i always paid it back..well my mom grew up with a sister who used to carelessly pawn jewelry for drugs.. being the wild child, my mom always compared me to her. I never got into drugs, but as you see above I did pawn a couple of items and there were times id call my mom and ask for money to get the stuff out,, again 10 years ago, life is completely different for me now.. I have a. Daughter and happy husband etc.. well.. 3-4 months ago we moved, and my mom helped us secure movers, people she employees at her work. While they were in our house, they stole about 7k worth of jewelry.. at the time I thought surely not I’ll find it.. time went by and I never did. I knew that day, I was missing stuff and I didn’t imagine even for a second her workers would steel from us.. it’s totally obvious they did, no one else has been in our house at all. When I told my mom her first reaction was to call me an idiot... and then ignore me for a week. I called my sister to talk about it and she confessed to me that my mom told her that I probably pawned the jewelry.. she also told her that a ring that was stolen from me several years ago was probably also pawned.. that’s just “how she is” my mom said about me to my sister. Welll.. I just completely lost it.. I decided to tell my mom I was done with her stuff and she’ll never see her grand daughter again. She basically went into how she was a victim, and how mean I am, and how her comments were passing and “just words” and “sorry you feel the way you do” .. it just made me more angry, and despite everything I just 100% feel like this straw broke the camels back. I don’t want anything to do with them anymore... I want to protect my daughter from my mom .. and as sad as I am, I’m changing my phone number tomorrow to move forward.. my mom is old, and I’ve always felt I should just take the high road until she dies.. like she’s crazy and mean often.. and I’ve always shrugged it off, but this I can’t shake. Am I being crazy or does this decision to cut my mom off sound justified? Thank you so much for reading this I am so grateful for you all!