DPL002 – Skill Up-gradation program for Diamond Grading

Program Overview :

This program is designed to produce the “Diamond Graders” to meet continuous growing demands of the trade & industry. Those completing the program should be able to sort out polished diamond and grade them as per domestic & international standard with respect to 4Cs i.e. Carat, Cut, Color & Clarity. Candidates shall be, although directly not related, exposed to polishing techniques to enable them to particularly grade Cut parameters with higher level of accuracy.

What you Learn :

Basics of polishing, polishing direction, polishing grain, polishing tips & techniques, maximum yield recovery, manufacturing defect, machine maintenance.

Sieving, Grading of Polished Diamond and Instruments used, Color Grading, Clarity Grading, Grading for cut according to local/domestic market. Valuation of Diamond as per local market.

Grading of Polished Diamonds Gauging of Diamonds, Color Grading using Natural Master Stones (GIA), Clarity Grading using Microscope & microscopic study, Grading for cut using Helium Polish. Hearts & Arrow Cut, Identification of Moissanite, Practice exclusively on diamonds graded by IDI, valuation of bigger size of Diamonds.

Microscope studies on diamonds about their inclusions & blemishes, its plotting, introduction to HPHT diamonds & synthetic diamonds.

An overview of various instrument like Diamond view, Diamond sure, FTIR, UV-VIS etc.

Valuation as per Rapaport (international Market)



Timing Schedule :



4 weeks (2 hrs/ day)


Domestic Grading

8 week ( 2 hrs/ day)


Grading International Standards

4 weeks (2 hrs/ day)


Microscopic Study 

2 weeks (2 hrs/ day)

1). 6:30 to 8:30 A.M. 2). 9:00 to 11:00 A.M. 3). 11:00 to 1:00 P.M. 4). 1:00 to 3:00 P.M. 5). 3:00 to 5:00 P.M. 6). 5:00 to 7:00 P.M.

7). 7:00 to 9:00 P.M. 8). 9:00 to 11:00 P.M. (depending on availability of seats)



18 week