N.J. Stat. § 2C:21-37: Requirements for reselling of secondhand jewelry.

2. Any individual who purchases used or secondhand jewelry from another individual with the intent of selling that jewelry to a person engaged in the business of retailing, wholesaling, or smelting jewelry shall:

a. Maintain, for five years, a record of the sale of that jewelry, including, but not limited to, the date the jewelry is sold; name of the person engaged in the business of retailing, wholesaling, or smelting jewelry to whom it is sold; and an itemized, descriptive list of that jewelry; and

b. Provide an itemized, descriptive list of the jewelry sold to the person engaged in the business of retailing, wholesaling, or smelting jewelry at the time of sale.

L.2009, c.214, s.2.