Tag Archives: diamond graders

Just Hire More Graders!


Guest post by Dan Gillen 

For as long as I can remember I have heard the Diamond Trade say ”Just hire more diamond graders”  The truth is it’s not that easy and not the full remedy to the long turnaround time.  Why do I know this? I know this because I had a career in a diamond lab.

First, let’s talk about the” Just hire more graders”.  New graders are not available for the picking they have to be trained to diamond grade.  Even those that come out of the GIA ‘s GG program do not know how to grade as a laboratory diamond grader.  Back in the mid 80’s I along with others helped produce a formal training program.  I spent almost three years training newly hired trainee diamond graders.  I sat with no more than ten at a time but six to eight was more ideal.  We spent three months, eight hours a day learning every aspect of grading.  From microscope usage and louping ability to polish, symmetry, plotting, clarity assigning, girdle thickness, culet size and so on.  The trainees graded diamonds that were submitted by clients and had already been graded by the regular graders, thus holding them up for return, for at least a week, unbeknownst to the client.  After three of training the trainees that made it this far were now allowed to be within the lab population and were known as preliminary graders.  Continue reading Just Hire More Graders!