Gemological Institute Of America (updated 2025-04-03)

How to Choose a Diamond 10Minute GIA Diamond Grading Guide by GIA [upl. by Pegeen]
Duration: 9:49
308.1K views | Jul 21, 2014
GIA Symposium 2018 [upl. by Ailhad]
Duration: 3:38
967 views | Oct 25, 2018
Diamond shopping Trust GIA [upl. by Retxed]
Duration: 1:01
579.8K views | Feb 5, 2019
The Latest on Synthetic Diamonds  Dr James Shigley  GIA at JCK [upl. by Lerual32]
Duration: 23:23
44K views | Sep 20, 2017
4Cs of Diamond Quality Diamond Color Grading by GIA [upl. by Nawram196]
Duration: 0:58
103.8K views | Jul 21, 2014
How to Classify a Lead Glass–Filled Ruby by GIA [upl. by Langbehn]
Duration: 5:28
164.5K views | Jul 21, 2014
Buying a Diamond Trust GIA [upl. by Guglielma428]
Duration: 0:15
3.6M views | May 4, 2020
Understanding Jadeite  GIA Knowledge Sessions Webinar Series [upl. by Sharleen]
Duration: 1:05:55
24.2K views | Jun 24, 2021
How to Read a GIA Grading Report Video by GIA [upl. by Thea]
Duration: 3:24
58.2K views | Jul 21, 2014
Diamond shopping Trust GIA [upl. by Garrott]
Duration: 1:00
183.6K views | Jan 28, 2019
4Cs of Diamond Quality Diamond Cut Grading by GIA [upl. by Ayenat]
Duration: 1:25
62.8K views | Jul 21, 2014
4Cs of Diamond Quality Diamond Clarity Grading by GIA [upl. by Ahsinoj]
Duration: 1:24
89.2K views | Apr 18, 2014
GIA Gemological Laboratory by GIA [upl. by Benny]
Duration: 5:46
149.1K views | Sep 16, 2015
Heat Treating Montana Sapphire [upl. by Eddi]
Duration: 17:42
178.6K views | Jul 26, 2016
Minerals of California [upl. by Naples]
Duration: 7:11
33.6K views | May 2, 2019
Jaipurs Emerald Industry [upl. by Cahn]
Duration: 2:07
104.7K views | Mar 19, 2020
Organizing the Smithsonians Mineral Collection [upl. by Christiana]
Duration: 4:06
9.3K views | May 24, 2018
GIA’s Distance Education by GIA [upl. by Kreager]
Duration: 1:58
10.4K views | Apr 18, 2014
Gems and Minerals at the Smithsonian [upl. by Eiramac]
Duration: 5:05
38.8K views | May 24, 2018



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