I understand that calcified stones are hard. And also that they show up on ultrasound.
It is important to try to soften or break them up. When they are too big they would have trouble coming out.
On the other hand when you keep trying to improve the health of your liver and gallbladder, there might be a point that they will have a nice smooth side and that they will be pushed out, because your gallbladder is able to do that stronger push.
My gallbladder has gotten healthier, no inflammation, wallthickness back to normal from 42 mm to 3 mm. I still have a 2.8cm stone.
I keep doing flushes and keep working with softening herbs.
And hope for the best. Also hope that I won't get new ones.