GIA on HPHT synthetics. Fall 2017.

[denverappraiser]

What we know about HPHT after 10 years of examinations in the GIA laboratories. It's not an especially easy read but well worth it for anyone who is into this sort of thing. This is the proverbial horse's mouth.

https://www.gia.edu/gems-gemology/fall-2017-observations-hpht-grown-synthetic-diamonds

 

[OoohShiny]

Ooh, thank you for the link, @denverappraiser!

I've printed that off so I can read it later

 

[OoohShiny]

Just to add to this, I stumbled on the 2016 GIA observations on CVD MMDs

https://www.gia.edu/gems-gemology/fall-2016-observations-cvd-grown-synthetic-diamonds-review