Is it possible to have strain patterns in D, VVS1, CVD diamond?

[dasitmane]

Hi all,

I am looking to buy a diamond which has been graded by IGI as IDEAL CUT, VVS1, D. It is produced by CVD and "may include post-growth treatment". I have read about CVD strain patterns. Is it possible such a high graded diamond could have strain patterns. Is this something I should be worrying about?

Cheer.s

 

[Garry H (Cut Nut)]

Hi all,

I am looking to buy a diamond which has been graded by IGI as IDEAL CUT, VVS1, D. It is produced by CVD and "may include post-growth treatment". I have read about CVD strain patterns. Is it possible such a high graded diamond could have strain patterns. Is this something I should be worrying about?

Cheer.s

CVD show a lot of strain under polarized light.
There are lots of articles

https://www.cigem.ca/research/IDofCVDdiamonds.pdf

Observations on CVD-Grown Synthetic Diamonds: A Review | Gems & Gemology

Explores statistical data and defining characteristics of gem-quality CVD synthetic diamonds examined by GIA since 2003.

www.gia.edu

Not sure you need to worry as the post growth treatment is likely to remove any normally visible strain patterns.