Although the BOL may have an artifically high declared value on it, in the event of a freight claim, I would think that the insurance company would follow the "paper trail" to determine what the actual value is. This paper trail would include such things as a Customs Invoice if the shipment was crossing a border, the invoice used to bill their customer, less mark-up and taxes of course, etc. I don't believe that insurance companies make any kind of payout without first determining what the actual value should be. Inflating the value of a shipment so that in the event of a claim the insurance company would payout more than actual value, is attempted fraud.