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naSRPS EN ISO 24016:2025

Jewellery and precious metals - Grading polished diamonds - Terminology, classification and test methods (ISO 24016:2020, including corrected version 2024-03)

General information

40.60     Jan 22, 2026

ISS

PKS C174

European Norm

39.060     01.040.39  

English  

Scope

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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naSRPS EN ISO 24016:2025
40.60 Close of voting
Jan 22, 2026

Related project

Adopted from EN ISO 24016:2026 IDENTICAL

Adopted from ISO 24016:2020 IDENTICAL