You can't. According to the international jewelry website, Zhou Dasheng's one-price diamond ring can't be discounted. One-price diamond ring is cost plus reasonable profit, which is the price of Zhou Dasheng jewelry. After the appearance of a one-price diamond ring, you can't see the word "discount" at any counter of Chow Tai Sang Jewelry. First Situation Jewelry Chow Tai Sang Jewelry is one of the largest jewelry brand operators in China, with gold as the main product and diamonds as the core product.