If a moving company is doing the packing for you, I’m surprised that they don’t have language that requires such a high value item to be identified for special packing/handling. Did you identify the bowl for careful treatment to the packers? If not, maybe you bear some responsibility for this? Of course, they should not pack anything in a manner that may lead to its breakage. But you can’t expect packers who handle ordinary household goods to know that a bowl is this valuable unless you tell them.
It’s a glass bowl. Anyone who doesn’t know glass is fragile shouldn’t be packing for a moving company.
Anyone who doesn’t know checked bags should not be lost should not be operating as an airline. But if you secretly fill your checked luggage with a million dollars in cash and the airline loses it, is it reasonable to expect them to reimburse you?
The packers/movers were negligent. But the issue is quantifying that negligence. Their liability must surely be conditioned on what degree of care is appropriate, which is a function of what they knew (if @Chefguy told them) or otherwise what they would reasonably expect about the value of a bowl included with ordinary household goods. To some degree I think that’s a function of how opulent the household goods are overall, and the total declared value and total cost of the whole contract. If a $2,500 bowl is the kind of thing you’d reasonably expect in context, I think that’s different than if it were not specifically identified and mixed in with furniture from IKEA.
They do have such language. The bowl was on a table with other higher value items, and the packers were told about them.