You can't. The gold bought in the gold store is not refundable, and can only be exchanged for other gold jewelry styles, or redeemed by recycling gold. However, if the other party has promised to return the goods before the purchase, the goods can be returned within the time specified in the contract. Specific reference to the relevant provisions of the gold shop.
Jewelry purchased in the gold store, if there is no quality problem, in essence can not be returned, no matter how long it has been bought, it is already a sale. If it is to be returned, the buyer needs to bear the procedure costs, and then re-identification of the sale of jewelry color also needs a certain amount of time and costs, which need to be borne by the buyer, so consumers should be prepared psychologically before buying.
However, if the other party promises to return the goods unconditionally before the purchase, the goods can be returned within the time stipulated in the contract.
If you really don't want it, you can participate in the "trade-in" activity in the brand store, the specific content is subject to the store rules; Or you can choose to sell, jewelry stores offer recycling services, but remember to bring invoices to ensure that the source of the product is transparent.