Sublime

The owner of the stone could use it as a payment method without it having to move: all that would happen is that the owner would announce to all townsfolk that the stone's ownership has now moved to the recipient. The whole town would recognize the ownership of the stone and the recipient could then use it to make a payment whenever he so pleased.

It is forbidden for a person to sell a colleague land or movable property over which there is a legal dispute or a pending suit by another person unless he notifies the purchaser.

Tell your prospect where your product has been offered or sold at full price or even how many thousands of people have paid the full price for the product or service.