Documentary stating 5-20 % of "mined" diamonds are really of lab origin...

[Garry H (Cut Nut)]

I watched the documentary - Dusan was in fact moonlighting as an Uber driver, in the wake of all the expensive “black box” type apparatus for identifying lab vs natural diamonds, there seemed to be a decrease in demand for a serious lab like his.

It was really very sad. In my opinion he very much came across as a serious scientist. He seems to be critical of the idea the these $5,000 “fool proof” detection apparatus were as accurate as they claimed.

I hope he finds a new niche for his valuable skills.

I will find a link to a webinar with his partner Branko interviewing the lab director at Stuller.
10m stones checked each year.
Guy Borestien ex GIA colored diamond lab

 

[Garry H (Cut Nut)]

I will find a link to a webinar with his partner Branko interviewing the lab director at Stuller.
10m stones checked each year.
Guy Borestien ex GIA colored diamond lab

Here it is:
The main point is there is no single yes / no instrument to identify grown vs natural diamond. The Webinar is about 1 hour 30 minutes.
(Dusan is Branko's partner in many projects)

 

[Garry H (Cut Nut)]

Somewhat relatedly, I'm lecturing at GIA's headquarters tomorrow about lab diamonds and will be tangentially covering a number of topics in this thread, if you want to join the livestream. Details are here:

I'm Guest Lecturing at GIA HQ Tomorrow - Beyond the 4Cs of Lab Diamonds - Watch Livestream March 1st @ 3:15PM PT

Hi fellow diamond geeks- GIA asked my cofounder and I to speak to their graduate gemologists on the quality characteristics of lab diamonds beyond the 4 C's. The lecture will be tomorrow March 1st at 3:15 PM PST (UTC -08:00) and livestreamed on GIA's Facebook and Instagram pages and posted to...

www.pricescope.com

Thanks Jason and Lindsay for a very informative webinar.
It seems the 4C's are insufficient for grown diamonds just as they are for natural diamonds!

https://www.facebook.com/video.php?v=1271573146792213

 

[MagpieMama]

Here it is:
The main point is there is no single yes / no instrument to identify grown vs natural diamond. The Webinar is about 1 hour 30 minutes.
(Dusan is Branko's partner in many projects)

Thank you for posting - such an interesting and informative lecture!