16 C.F.R. § 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).
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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).