Regulations last checked for updates: Feb 09, 2026

Title 16 - Commercial Practices last revised: Dec 15, 2025
§ 23.14 - Disclosure of treatments to diamonds.

A diamond is a gemstone product. Treatments to diamonds should be disclosed in the manner prescribed in § 23.24 of these guides (Disclosure of treatments to gemstones).

authority: 15 U.S.C. 45,46
source: 83 FR 40667, Aug. 16, 2018, unless otherwise noted.
cite as: 16 CFR 23.14