Reference number
ISO 24016:2020
© ISO 2025
International Standard
ISO 24016:2020
Jewellery and precious metals — Grading polished diamonds — Terminology, classification and test methods
Edition 1
2020-09
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Published (Edition 1, 2020)

ISO 24016:2020

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Format
CHF 199
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 2020-09
    Corrected version (en)
     : 2024-03
    Corrected version (fr)
     : 2024-03
    Stage
    : International Standard published [60.60]
  • Edition
     : 1
    Number of pages
     : 53
  • Technical Committee :
    ISO/TC 174
    ICS :
    39.060  01.040.39 
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