* Gemological Laboratory (updated 2024-11-21) ~ youtor.org

Gemological Laboratory (updated 2024-11-21)

099ct Natural Bluish Green Neon Paraiba Tourmaline from Mozambique Certified [upl. by Drofwarc532]

099ct Natural Bluish Green Neon Paraiba Tourmaline from Mozambique Certified

Duration: 1:07
190 views | 5 Mar 2022

BRANKOGEMS activities at Tucson Gem and Mineral Show 2022 [upl. by Noella486]

BRANKOGEMS activities at Tucson Gem and Mineral Show 2022

Duration: 3:04
730 views | 24 Mar 2022

Old Mine Cut Diamond Ring 156 Carats [upl. by Fulmer]

Old Mine Cut Diamond Ring 156 Carats

Duration: 0:14
315 views | 10 months ago

Malayan Gemological Laboratory Services MGLS [upl. by Neurath]

Malayan Gemological Laboratory Services MGLS

Duration: 12:25
322 views | 22 Jun 2021

Fake GIA Inscription demonstration [upl. by Rem953]

Fake GIA Inscription demonstration

Duration: 1:15
1K views | 25 Oct 2017

Gemological Science International GSI LaboratoryGrown Diamonds [upl. by Ibmab]

Gemological Science International GSI LaboratoryGrown Diamonds

Duration: 3:58
749 views | 5 Dec 2018

TGL Tourmaline Lanka Gem Lab Profile

Duration: 2:18
8.8K views | 5 Nov 2020

AIGS Gemology School and Gem Laboratory INTRO [upl. by Bastien]

AIGS Gemology School and Gem Laboratory INTRO

Duration: 2:56
9K views | 20 Jan 2020

LaboratoryGrown Colored Gemstones Crystal Growth Methods GIA Knowledge Sessions Webinar Series [upl. by Murry]

LaboratoryGrown Colored Gemstones Crystal Growth Methods GIA Knowledge Sessions Webinar Series

Duration: 58:05
10K views | 1 month ago

AGTL Atharv Gem Testing Lab Gemstone Testing Lab Gemological Laboratory Bhopal MP India [upl. by Daryn371]

AGTL Atharv Gem Testing Lab Gemstone Testing Lab Gemological Laboratory Bhopal MP India

Duration: 1:00
255K views | 10 Oct 2018

සුදු පාට ගල් පුෂ්පරාග මැණික් කරන හැටි How To Turn White Stone To Yellow Sapphire yellowsapphire [upl. by Hcelemile334]

සුදු පාට ගල් පුෂ්පරාග මැණික් කරන හැටි How To Turn White Stone To Yellow Sapphire yellowsapphire

Duration: 11:54
24.9K views | 22 Oct 2023

Life changing decision AIGS Jewelry Design Course how taking this course changed my life [upl. by Ahsennod]

Life changing decision AIGS Jewelry Design Course how taking this course changed my life

Duration: 3:21
4.9K views | 22 Apr 2020

BEWARE OF FAKE CERTIFICATES CERTIFIED GEMSTONE ARE FAKE TOO FAKE GEM TESTING LABORATORY SCAM [upl. by Opportina]

BEWARE OF FAKE CERTIFICATES CERTIFIED GEMSTONE ARE FAKE TOO FAKE GEM TESTING LABORATORY SCAM

Duration: 6:40
419.4K views | 3 May 2022

Hessonite Gem Stone Polariscope Gem Identification Gemology AGTL Atharv Gem Testing Lab [upl. by Aniela47]

Hessonite Gem Stone Polariscope Gem Identification Gemology AGTL Atharv Gem Testing Lab

Duration: 0:56
4.6K views | 26 Nov 2018

Unboxing Emeralds Gemologist vs Geologist [upl. by Annail]

Unboxing Emeralds Gemologist vs Geologist

Duration: 14:16
2 views | 2 weeks ago

WHY DO YOU NEED A JEWELLERY APPRAISAL [upl. by Aryad]

WHY DO YOU NEED A JEWELLERY APPRAISAL

Duration: 2:48
70 views | 9 months ago

Identification of Turquoise in the Gemological Laboratory Behind the Scenes with Turquoise at GIA [upl. by Rettuc]

Identification of Turquoise in the Gemological Laboratory Behind the Scenes with Turquoise at GIA

Duration: 30:14
12.7K views | 14 May 2020

📢Introducing Aurora Green❇️💚 [upl. by Meece]

📢Introducing Aurora Green❇️💚

Duration: 0:42
1.6K views | 8 Mar 2022

LaboratoryGrown Diamonds from China GIA Knowledge Sessions Webinar Series [upl. by Michelle]

LaboratoryGrown Diamonds from China GIA Knowledge Sessions Webinar Series

Duration: 59:04
23.7K views | 3 Aug 2015

Laboratorygrown Diamonds Comparative Analysis of Portable Instruments for Screening and ID [upl. by Cilegna]

Laboratorygrown Diamonds Comparative Analysis of Portable Instruments for Screening and ID

Duration: 29:20
446 views | 4 months ago

Identifying real and fake gemstones in Brazil [upl. by Ganley]

Identifying real and fake gemstones in Brazil

Duration: 6:23
28.5K views | 26 Sep 2023

2024 New Trade name by AIGS Aurora Green Emerald Part 2 gemstones gemlab Thailand [upl. by Lamahj644]

2024 New Trade name by AIGS Aurora Green Emerald Part 2 gemstones gemlab Thailand

Duration: 0:49
415 views | 4 weeks ago

SEBAIK DAN SEBAGUS APA KUALITAS DARI GIOK ACEH IDOCRASE [upl. by Duggan]

SEBAIK DAN SEBAGUS APA KUALITAS DARI GIOK ACEH IDOCRASE

Duration: 4:36
5K views | 11 months ago

Natural Aquamarine Diamond Ring 675 14k W Gold 224 TCW Certified 3950 310651 [upl. by Bergren]

Natural Aquamarine Diamond Ring 675 14k W Gold 224 TCW Certified 3950 310651

Duration: 0:08
8.6K views | 8 Aug 2023

CARA CEPAT MEMBEDAKAN RUBY DAN SPINEL DENGAN MENGGUNAKAN SPECTROSCOPE [upl. by Alage]

CARA CEPAT MEMBEDAKAN RUBY DAN SPINEL DENGAN MENGGUNAKAN SPECTROSCOPE

Duration: 4:43
817 views | 3 Dec 2018

MENGENAL IRRADIATION CAT’S EYE CHRYSOBERYL DAN CARA MENDETEKSINYA [upl. by Gnourt]

MENGENAL IRRADIATION CAT’S EYE CHRYSOBERYL DAN CARA MENDETEKSINYA

Duration: 3:33
11.7K views | 20 Apr 2020

$Refractometer How to use [upl. by Enrika]$

Refractometer How to use

Duration: 1:58
81.6K views | 27 May 2017

Ruby Gemstone Corundum Gemstone Gem Microscope Gemology AGTL Atharv Gem Testing Lab [upl. by Pliske]

Ruby Gemstone Corundum Gemstone Gem Microscope Gemology AGTL Atharv Gem Testing Lab

Duration: 0:28
10.5K views | 8 months ago

Rubies from Aappaluttoq Greenland [upl. by Barayon393]

Rubies from Aappaluttoq Greenland

Duration: 4:20
|

MENILAI BLUE STAR SAPPHIRE YG BERKUALITAS [upl. by Burkle]

MENILAI BLUE STAR SAPPHIRE YG BERKUALITAS

Duration: 3:59
|

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