First of all, according to Maslow's hierarchy of needs theory, jewelry belongs to a higher level of demand and is defined as luxury goods in economics. One of the characteristics of this kind of consumer goods is that the price elasticity is relatively large. The so-called price elasticity is relatively large, that is, the price of the product has a great influence on the sales volume of the product. Moreover, as a luxury, consumers' purchasing demand is not only in the product itself, but also a way to realize self-social expression and show their status. Therefore, this consumer product should bring a conceptual consumer image to customers, just like the development of Marlboro, and establish a conceptual consumer image (I suggest you search the development process of Marlboro). There is also the classification of customers, because customers have different status and jobs, so the demand for products, or your consumer services, is different, according to customer preferences.