Heey Sophia 😊
Puuh that is actually a tough question to answer!
My coworker got one and all stones are still intact and are fine , but i would say that really also depends on the usage and how carefull you are with it. I mean in the end the stones are glued on and there is of course the posibility that after some time stones can also come off. 🤔
On the matter of how to use it: The outside rinse with water, or use wipes and the inside you can clean just like a normal bottle.
But in case you have any problems with the bottle after the purchase, you can also always reach out to us! 😇
I mean this bottle is really pretty and a eye catcher! 🥰
Have a lovely day and let me know if you got more questions, I am happy to help!