Question: I am in the midst of shopping for a proposal ring and had shortlisted a couple of diamonds in the SI2 and VS2 clarity grades. However, one of the diamonds has a comment in the GIA report which says “Additional pinpoints are not shown”. What does this mean and should I be concerned about it?
What!!? I have a comment in the GIA report?
Answer: Thanks for dropping me an email. Pin point inclusions in a diamond are basically tiny mineral crystals inside the stone. These pinpoints are so minor that they usually won’t affect the diamond’s clarity rating when it is being graded in the lab.
The reason the statement is there is to complete the report and to allow 3rd party appraisers to be aware of any other inclusions apart from those already listed in the clarity plot. There are 2 main reasons why this is done by GIA and other respectable labs.
The first reason is that these pinpoints are so tiny under 10X magnification that if they were to be plotted, they would look larger than they are in reality. The second reason is that the pinpoints could be so numerous and spread out across the diamond that it complicates the plot unnecessarily.
Here’s an example to illustrate this.
Because the inclusions are so small, you can’t even see the tiny dot on the plot unless we purposely enlarge the diagram to show it proportionately. To sum things up, you don’t have to worry about that comment in a VS grading. You will be fine. For SI or I clarity graded diamonds, the stones should be judged by a professional eye on a case by case basis.