Видео ютуба по тегу Gsi Diamonds

Gemological Science International (GSI): Laboratory-Grown Diamonds
Gemological Science International (GSI): Laboratory-Grown Diamonds
GSI: Testing & Screening
GSI: Testing & Screening
Diamond Certification Review GIA AGS EGL IGI HRD GSI PGS
Diamond Certification Review GIA AGS EGL IGI HRD GSI PGS
«Большая буква С» | Практики сертификации алмазов и перспективы рынка | GSI | 4K | CNBC TV18 Prime
«Большая буква С» | Практики сертификации алмазов и перспективы рынка | GSI | 4K | CNBC TV18 Prime
GSI: Diamond Education Courses
GSI: Diamond Education Courses
GSI: Grading at its finest!
GSI: Grading at its finest!
Gemological Science International (GSI): Cut + Light Performance
Gemological Science International (GSI): Cut + Light Performance
GSI Virtual Diamond Examination (VDX)
GSI Virtual Diamond Examination (VDX)
Gemological Science International (GSI): Clarity
Gemological Science International (GSI): Clarity
Gemological Science International (GSI): Cut + Diamond Finish
Gemological Science International (GSI): Cut + Diamond Finish
About Gemological Science International (GSI)
About Gemological Science International (GSI)
How to grade a diamond. part 1
How to grade a diamond. part 1
GSI's lecture on origin of natural Diamonds and synthesis of artificial diamonds
GSI's lecture on origin of natural Diamonds and synthesis of artificial diamonds
THE END OF LAB DIAMONDS? GIA’s Bombshell Announcement EXPLAINED
THE END OF LAB DIAMONDS? GIA’s Bombshell Announcement EXPLAINED
VS2 или SI1: сравнение четкости
VS2 или SI1: сравнение четкости
Mark Gershburg & Debbie Azar, Co-Founders of GSI: Interviewed by The New Jeweller Group
Mark Gershburg & Debbie Azar, Co-Founders of GSI: Interviewed by The New Jeweller Group
GSI Jewelry Design Workshop: Alpit Intodia
GSI Jewelry Design Workshop: Alpit Intodia
Lab-Grown vs. Natural: Putting the Diamonds to the Test
Lab-Grown vs. Natural: Putting the Diamonds to the Test
GSI's Debbie Azar On BOLD TV: The Differences Between Natural and Lab Grown Diamonds
GSI's Debbie Azar On BOLD TV: The Differences Between Natural and Lab Grown Diamonds
Gemological Science International (GSI): Color
Gemological Science International (GSI): Color