IS 19469 : 2025 Jewellery - Consumer Confidence in the Diamond Industry (ISO 18323 : 2015, MOD)
NATIONAL FOREWORD
This Indian Standard, which is modified adoption of ISO 18323 : 2015 'Jewellery - Consumer confidence in the diamond industry' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Precious Metal Sectional Committee and approval of the Metallurgical Engineering Division Council.
The portions given in dotted underlines are the matters not specified in the corresponding International Standard. A list of technical modifications is given in National Annex A.
Diamond is a naturally occurring mineral, a crystalline form of the element carbon.
The Jewellery industry relies upon product integrity and transparency for consumers to have confidence in the products that they are buying. Consumers will not always have the technical expertise to understand the exact provenance and processing of a diamond and as a result are reliant upon labelling and product descriptions as well as guidance from the individual seller.
The recent development of new technologies in the diamond industry has provided consumers with greater availability of laboratory-grown diamond which are produced in a factory or laboratory. They have essentially the same chemical composition and physical (including optical) properties as a diamond and essentially the same crystal structure but due to the growth environment, differences in the growth structure take place at the atomic level.
A major concern held by the diamond industry is that without clear and accurate labelling, the increased availability of laboratory-grown diamonds to consumers can cause confusion over exactly what type of product is being sold to them. While the provenance and labelling of a diamond is widely understood, the consumer will be less familiar with the variety of terms that have been used by sellers to describe laboratory grown diamonds.
The diamond industry is concerned that a consumer can inadvertently buy a laboratory-grown diamond or other product believing it to be a diamond and similarly, the laboratory grown diamond industry (laboratory-grown diamond growers) does not want its products to be seen as a cheap alternative to a diamond or as a product that consumers will only buy if they are not fully aware of its provenance.
Considering that laboratory-grown diamonds are nowadays set in jewellery pieces it is therefore in the interests of both sectors of the market that consumers are able to make informed purchasing decisions.
Except the deviations identified in National Annex A, the remaining text of the ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical with those used in Indian Standard. Attention is especially drawn to the following:
a) Wherever the words 'International Standard' appear referring to this standard, it should be read as 'Indian Standard'.
b) Comma (,) has been used as a decimal marker while in Indian Standards the current practice is to use a point (.) as the decimal marker.