Code of Federal Regulations (Last Updated: May 6, 2024) |
Title 16 - Commercial Practices |
Chapter I - Federal Trade Commission |
SubChapter B - Guides and Trade Practice Rules |
Part 23 - Guides for the Jewelry, Precious Metals, and Pewter Industries |
§ 23.12 - Definition and misuse of the word “diamond.”
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§ 23.12 Misuse Definition and misuse of the words “flawless,” “perfect,” etc.word “diamond.”
(a) A diamond is a mineral consisting essentially of pure carbon crystallized in the isometric system. It is found in many colors. Its hardness is 10; its specific gravity is approximately 3.52; and it has a refractive index of 2.42.
“flawless”(b) It is unfair or deceptive to use the unqualified word
diamond that discloses flaws, cracks, inclusions, carbon spots, clouds, internal lasering, or other blemishes or imperfections of any sort when examined under a corrected magnifier at 10-power, with adequate illumination, by a person skilled in diamond grading.“diamond” to describe or identify any
(b) object or product not meeting the requirements specified in the definition of diamond provided above, or which, though meeting such requirements, has not been symmetrically fashioned with at least seventeen (17) polished facets.
use the word “perfect,” or any representation of similar meaning, to describe any diamond unless the diamond meets the definition of “flawless” and is not of inferior color or make.Note to Paragraph (b):It is unfair or deceptive to
(c) It is unfair or deceptive to use the words “flawless” or “perfect” to describe a ring or other article of jewelry having a “flawless” or “perfect” principal diamond or diamonds, and supplementary stones that are not of such quality, unless there is a disclosure that the description applies only to the principal diamond or diamonds.
represent, directly or by implication, that industrial grade diamonds or other non-jewelry quality diamonds are of jewelry quality.
(c) The following are examples of descriptions that are not considered unfair or deceptive:
(1) The use of the words “rough diamond” to describe or designate uncut or unfaceted objects or products satisfying the definition of diamond provided above; or
(2) The use of the word “diamond” to describe or designate objects or products satisfying the definition of diamond but which have not been symmetrically fashioned with at least seventeen (17) polished facets when, in immediate conjunction with the word “diamond,” there is either a disclosure of the number of facets and shape of the diamond or the name of a type of diamond that denotes shape and that usually has less than seventeen (17) facets (e.g., “rose diamond”).
(3) The use of the word “cultured” to describe laboratory-created diamonds that have essentially the same optical, physical, and chemical properties as mined diamonds if the term is qualified by a clear and conspicuous disclosure (for example, the words “laboratory-created,” “laboratory-grown,” “[manufacturer name]-created,” or some other word or phrase of like meaning) conveying that the product is not a mined stone.