The man who can tell diamonds apart - BBC Documentary

John King, Chief Quality Officer (Gemological Institute of America)
Director/Producer/Editor: Yannis Zafeiriou (yanzaf.com)
Executive Producer: BBC WORKLIFE
Supervising Producers: Anna Bressanin & Kieran Nash
Producer: Bernadette Young
Special Thanks
Gemological Institute of America
Nellie Barnett

[@Rezin_8]

❤ so cool

[@FlyingPenguinProductions]

Glad you enjoyed it!

[@hiddengem59]

Can you tell me my stone is diamond or not

[@FlyingPenguinProductions]

I can’t. But I’m sure John King can ❤️