BS DD 234:1996
Grading polished diamonds - Terminology and classification

Standard No.

BS DD 234:1996

Release Date

1996

Published By

British Standards Institution (BSI)

Latest

BS DD 234:1996

Scope

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.

BS DD 234:1996 history

• 1996 BS DD 234:1996 Grading polished diamonds - Terminology and classification