For example, what line city is your city? What is a five-star hotel? What is the location and area of the hotel where the store is located?
These factors all affect whether you can open and what brand of jewelry store you open.
To sum up, five-star hotels are aimed at high-end people with strong spending power, but jewelry belongs to luxury goods, and the probability of repeated purchases by consumers is not great, while consumers in places with large traffic like hotels are not fixed.
So if you want to open it, you can open a high-end clothing store for both men and women. If you have to open a jewelry store, you can consider international brands such as Swarovski and Folli Follie, and domestic brands such as I DO and Bloves.
The above is for reference only, I hope I can help you.