It can be more than half a year. There are three requirements for loan extension: short-term loan, medium-term loan and long-term loan.

1. Short-term loan: the term is within one year, including one year, and the cumulative extension period cannot exceed the original loan term.

2. Medium-term loan: the term is more than one year, and less than five years also includes five years. The cumulative extension period cannot exceed half of the original loan period.

3. Long-term loans: the term is more than five years, excluding five years, and the cumulative extension cannot exceed three years. Therefore, the extension of jewelry loans can exceed six months.