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ISO 24016:2020

Jewellery and precious metals -- Grading polished diamonds -- Terminology, classification and test methods

General information
Valid from 18.09.2020
Directives or regulations
None
Standard history
Status
Date
Type
Name
18.09.2020
Main
This document specifies the terminology, classification and the methods that are used for the grading and description of single unmounted polished diamonds over 0,25 carat (ct). This document applies to natural, unmounted, polished diamonds. It is not to be used for fancy coloured diamonds, synthetic diamonds, treated diamonds (other than is allowed for in 7.4), nor for assembled stones.
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Standard monitoring