wholesale jewelry thailand manufacturer What should I pay attention to when buying a diamond ring? Can you bargain? How much does the shop owner report? How much is the difference between the level of the diamond ring and the level? General stores are sold

wholesale jewelry thailand manufacturer What should I pay attention to when buying a diamond ring? Can you bargain? How much does the shop owner report? How much is the difference between the level of the diamond ring and the level? Which level of diamonds are the general stores selling? Are diamonds and gold that are basically fixed at the same price?