Considering the price increase of the merchants themselves, they can buy futures diamonds if they can't buy low prices;

If you are used to preserving value, you can consider specializing in diamond business, because only in this way can you get the lowest price. As for the five-year repurchase, there is no guarantee, because the merchants themselves want to make money, and the profit of 10% repurchase is lower than that of five-year deposits. And if the diamond itself is used to customize the ring, the customized materials and labor costs of the ring are not included.