N.Y. General Business Law § 229-j: Sale of artificially colored diamonds

§ 229-j. Sale of artificially colored diamonds. Any person, firm,

corporation or association, and any agent or employee thereof, who or

which shall knowingly sell or offer for sale any diamond which shall

have been artificially colored or tinted by coating, irradiating,

heating, nuclear bombardment or by any other means, without disclosing

in writing to the purchaser, or prospective purchaser, that such diamond

has been artificially colored or tinted, or without disclosing in

writing that the artificial coloring or tinting of such diamond is not

permanent, if that be the fact, shall be guilty of a misdemeanor.