If you don't negotiate the return at the time of purchase, you generally don't support the return after purchase. If at the time of purchase, the seller clearly stated that it can be returned the next day, then it can be returned the next day.

After receiving the goods, consumers have the right to choose to return, exchange or repair the following quality problems:

1. The grade marked on the invoice or jewelry is inconsistent.

2. The testing department authorized by the Municipal Gold and Jewelry Industry Association detected unqualified products.

It should be noted that if the goods are returned due to the buyer's personal reasons, the merchant can refuse the application for return or refund. If you encounter this situation, you can try to negotiate with the merchants, or consider seeking help from relevant institutions or consumer associations.

In addition, if the goods have quality problems and are found within seven days after purchase, consumers can request a return, exchange or repair according to the provisions of the Law of People's Republic of China (PRC) on the Protection of Consumer Rights and Interests. However, it should be noted that if the goods have no quality problems, or the return period exceeds seven days, the merchants generally do not support the return.

In short, before buying goods, it is recommended to carefully understand the provisions of the merchant's return policy and fully communicate and negotiate with the merchant. If you encounter any problems, you can solve them through consultation or legal channels.