16 CFR Part 23

§ 23.0 Scope and application.

§ 23.1 Deception (general).

§ 23.2 Misuse of the terms “handmade,” “hand-polished,” etc.

§ 23.3 Misrepresentation as to gold content.

§ 23.4 Misuse of the word “vermeil.”

§ 23.5 Misrepresentation as to silver content.

§ 23.6 Misuse of the words “platinum,” “iridium,” “palladium,” “ruthenium,” “rhodium,” and “osmium.”

§ 23.7 Disclosure of surface-layer application of rhodium.

§ 23.8 Misrepresentation as to products containing more than one precious metal.

§ 23.9 Misrepresentation as to content of pewter.

§ 23.10 Additional guidance for the use of quality marks.

§ 23.11 Misuse of “corrosion proof,” “noncorrosive,” “corrosion resistant,” “rust proof,” “rust resistant,” etc.

§ 23.12 Definition and misuse of the word “diamond.”

§ 23.13 Misuse of the words “flawless,” “perfect,” etc.

§ 23.14 Disclosure of treatments to diamonds.

§ 23.15 Misuse of the term “blue white.”

§ 23.16 Misuse of the term “properly cut,” etc.

§ 23.17 Misuse of the words “brilliant” and “full cut.”

§ 23.18 Misrepresentation of weight and “total weight.”

§ 23.19 Definitions of various pearls.

§ 23.20 Misuse of the word “pearl.”

§ 23.21 Misuse of terms such as “cultured pearl,” “seed pearl,” “Oriental pearl,” “natura,” “kultured,” “real,” “synthetic,” and regional designations.

§ 23.22 Misrepresentation as to cultured pearls.

§ 23.23 Disclosure of treatments to pearls and cultured pearls.

§ 23.24 Disclosure of treatments to gemstones.

§ 23.25 Misuse of the words “ruby,” “sapphire,” “emerald,” “topaz,” “stone,” “birthstone,” “gem,” “gemstone,” etc.

§ 23.26 Misrepresentation as to varietal name.

§ 23.27 Misuse of the words “real,” “genuine,” “natural,” “precious,” etc.

§ 23.28 Misuse of the words “flawless,” “perfect,” etc.