Article 23 of the Labor Contract Law stipulates that the employer and the employee may agree in the labor contract to keep the business secrets of the employer and confidential matters related to intellectual property rights. For the workers who have the obligation of confidentiality, the employer may stipulate the non-competition clause with the workers in the labor contract or confidentiality agreement, and stipulate that after the labor contract is dissolved or terminated, the economic compensation will be paid to the workers on a monthly basis during the non-competition period. If the laborer violates the non-competition agreement, he shall pay liquidated damages to the employer in accordance with the agreement.

Article 24 of the Labor Contract Law stipulates that persons with non-competition restrictions are limited to the senior managers, senior technicians and other personnel with confidentiality obligations of the employer. The scope, area and time limit of non-competition shall be agreed by the employer and the employee, and the agreement on non-competition shall not violate the provisions of laws and regulations. After the dissolution or termination of the labor contract, if the personnel specified in the preceding paragraph go to other employers that have a competitive relationship with their own units to produce or operate similar products or engage in similar businesses, or start their own businesses to produce or operate similar products or engage in similar businesses, the non-competition period shall not exceed two years.

According to the above law, if the jewelry store signs a non-competition clause with you, the jewelry store must pay you economic compensation every month. If you don't pay economic compensation, the terms are invalid and don't involve your legal responsibility. If he sues you, you have every chance to win.