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BSI DD 234:1996

Grading polished diamonds. Terminology and classification
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BSI DD 234:1996

Grading polished diamonds. Terminology and classification

PUBLISH DATE 1996
BSI DD 234:1996

This Technical Report specifies the terminology and classification to be used for the grading and description of polished diamonds.

This Technical Report shall only be used for natural, unmounted, polished diamonds. It shall not be used for synthetic diamonds, treated diamonds (other than is allowed for in 3.3), or for assembled stones (see 3.5).

A terminology and classification for the colour of fancy coloured diamonds (see 5.1.2) is in the course of preparation.

Test methods concerning the technical application of this terminology and classification are in the course of preparation.

Specifies the terminology and classification to be used for the grading and description of natural, unmounted, polished diamonds.
SDO BSI: British Standards Institution
Document Number 234
Publication Date June 15, 1996
Language en - English
Page Count
Revision Level
Supercedes
Committee STI/53
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