There are three levels of valuation. The basic plan is typically called “Release Rate Liability” and will pay you a certain amount of money per pound which is generally a fraction of what your item's value is.
You can also get “Full-Value Coverage” which means that, if your belongings are lost or damaged, will be repaired, replaced with like items, or you get a cash settlement.
Lastly, you will be able to mark your items on a “High-Value Inventory'' list. All items that are valued at over $100 per pound must be on this list. This can be anything from jewelry to art to antiques and more.