Conn. Gen. Stat. § 53-324: Articles purporting to be made of gold to be marked.

Any article represented to be of gold, which is made for sale or offered for sale, or held in possession with intent to sell, by any dealer, shall bear upon it, plainly stamped, the figures indicating the exact number of twenty-fourth parts of pure gold or proportion of gold that such article contains. Any person who violates any of the provisions of this section shall be fined not more than one thousand dollars or imprisoned not more than one year or both.