Nasty!
Ignore her. That's what I would do. I wouldn't answer her at all.
I can see that someone who uninvites you, but wants your daughters there, is really up to no good at all.
Then asks about selling the rings. As if it is her business. Then tells you why to sell the rings, and what to use the money for. Sick.
My mother just called. I let it go to voicemail as always. Took me half an hour to listen to the message. My heartbeat was up. Finally listened. Sound of her voice makes me ill, even if the message was nothing important. I could hear the strain in her voice from her end. She's not comfortable either.
Your mother is very controlling. Best way for her to lose control at this time would be silence from you. She can't control if you won't engage. I've noticed these types really hate to be ignored.