Ryan, I remember that I should be able to change the style of the diamond ring, but I wonder if the diamond ring has been changed into a platinum ring? I don't think it's because the profit of diamond ring is too different from that of platinum, but you can ask them if they have an invoice. First of all, they have detailed sales records. Second, they can't just give you the invoice, but also have other certificates, such as the inspection certificate of the finished diamond ring. Third, the inner walls of their rings all have their own trademarks. Usually no one outside will do it for you!