Black inclusion-like splotches on Idealscope image??

[kristie]

So I was at my appraiser viewing a diamond that looked GREAT to me......SI2 but nothing visible to the naked eye and the only inclusions were 3 long twinning wisps. However, when I looked through the Idealscope at it, there was a lot of the edges of the diamond that had black little splotches on it....almost like the diamond had lint all along the edges in parts or something. Also a few tiny black speckles here and there in it as well......yet there are NO blck carbon spots on this diamond under the microscope or on the GIA plot.

Then, I looked at another SI2 in the IS and I could only see the black carbon spot inclusion that I already knew was there....none of the weird little black blotches on it at all.

Both diamonds were over 2.5 cts.

Any ideas??

 

[Garry H (Cut Nut)]

Do not ever use the ideal-scope for inculsion grading.
It can help loacate some types by making them appear far too obvious, and miss others.

 

[Paul-Antwerp]

Like Garry said, devices like the idealscope, the H&A and the ASET (basically standardized simplified viewing environments) tend to make inclusions more obvious.

As a result, I know of gemmologists really liking to work with an idealscope, not to judge cut, but mainly because they can find inclusions more easily in circumstances where no microscope is available.

Live long,

 

[Lorelei]

Hi Kristie

With this diamond, if it looks great to you and is eyeclean then that is all I would worry about.