Hello, this kind of jewelry store lottery is a routine. Please see if this is the case. If the following items are met, it means that this thing you bought is not worth 300 yuan:

1。 Jewelry stores are located in supermarkets or small department stores.

Jewelry stores often have such activities. Some jewelry stores just take some jade to do activities, which is attractive, because its own value is not easy for consumers to see, so it is easy to be deceived.

3。 Jewelry stores are small in scale, so they don't need to be brands, as long as they have money to earn.

I hope I can help you, and I hope to adopt it! !