The price of 298 should be regarded as a relatively common price in the market. But according to the current (tonight) stock market price of 23 1.55, it is almost more than 60 yuan per gram. If the price of 298 a gram does not include the processing fee, then you bought more than 60 yuan. Of course, the store doesn't earn as much as you do. It depends on their purchase price. Generally, the purchase price is a little more expensive than the stock market price (the factory link is probably within the processing fee per gram 10 yuan).

You mean Jin Jiufu's full name is Jin Jiufu Jewelry? If so, it's a brand, but it's not as famous as Zhou Dasheng. You might as well check whether the necklace they sold you has reached a thousands of feet. If you have tools at home, you can burn them yourself (pay attention to the heat, they won't melt well), or take the necklace to the store and let them burn it for you. The color of real gold after burning must be basically the same as before buying, and the light emitted by real gold during burning is full.