NF S89-003:2020
Jewellery and precious metals - Grading polished diamonds - Terminology, classification and test methods

Standard No.

NF S89-003:2020

Release Date

2020

Published By

Association Francaise de Normalisation

Latest

NF S89-003:2020

Scope

Scope This document specifies the terminology, graduations and methods that are used for the classification and description of individual unmounted cut diamonds over 0.25 carat (ct). This document applies to cut diamonds

NF S89-003:2020 history

• 2020 NF S89-003:2020 Jewellery and precious metals - Grading polished diamonds - Terminology, classification and test methods