Amex Platinum purchase protection insures items bought with an Amex Platinum card up to $10,000 per incident and $50,000 per year. If an eligible item is lost, broken, or stolen within 120 days of the purchase date, Amex may reimburse its value. Authorized users are also covered, as long as they’re U.S. residents.
This perk is pretty standard for rewards cards, and it doesn’t cost extra. But there are a few restrictions. First off, you need to still have the original store receipt. Secondly, certain items are restricted. Non-eligible items include: tickets, checks, gift cards, animals/plants, consumables/perishables, antiques, motor vehicles and rented items, to name a few. For the full list, you can look here. Also, losses due to natural disasters will only be reimbursed up to $500.
One other thing to keep in mind is that Amex might ask you to send them your broken item. If they do, they’ll reimburse you for the shipping.