There is no specific limit for jewelry in articles that are not newly purchased for personal use, but not too much to avoid trouble. Canadian customs only explained the jewelry as follows, to the effect that the value of jewelry is sometimes difficult to determine, and it is recommended to bring as little as possible.
For other goods with a tax return of more than 800 Canadian dollars, the limit of staying abroad for more than 7 days (1 year is also counted as more than 7 days) is as follows.