IS 15766 : Part 2 : 2007 Grading of Polished Diamonds - Part 2 : Test Methods

1 Scope

This standard specifies methods for the grading ofnatural unmounted polished diamonds within the D(exceptional white +) to Z (tinted) series and thegrading criteria, other than for the colour of naturallycoloured diamonds.

2 Reference

The following standard contains provision, whichthrough reference in this text, constitutes provision ofthis standard. At the time of publication, the editionindicated was valid. All standards are subject to revisionand parties to agreement based on this standard isencouraged to investigate the possibility of applyingthe most recent edition of the standard indicated below: