BS ISO 24016:2020

This standard BS ISO 24016:2020 Jewellery and precious metals. Grading polished diamonds. Terminology, classification and test methods is classified in these ICS categories:

• 01.040.39 Precision mechanics. Jewellery (Vocabularies)
• 39.060 Jewellery

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.