* Gemological Institute Of America (updated 2024-10-21) ~ youtor.org

Gemological Institute Of America (updated 2024-10-21)

How to Read a GIA Grading Report Video by GIA [upl. by Nymzaj]
Duration: 3:24
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Duration: 1:55
5K weergaven | 6 maanden geleden
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Duration: 5:29
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Duration: 22:47
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Duration: 4:20
1,3mln. weergaven | 21 jul. 2014
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Duration: 0:47
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Duration: 1:25
54,7K weergaven | 21 jul. 2014
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Duration: 5:28
158,9K weergaven | 21 jul. 2014
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Duration: 14:58
171,4K weergaven | 21 jul. 2014
How to Choose a Diamond 10Minute GIA Diamond Grading Guide by GIA [upl. by Neenej780]
Duration: 9:49
306,8K weergaven | 21 jul. 2014
Sergey Sivovolenko “Quantitative Absorption Spectra for Diamond” [upl. by Ylenats2]
Duration: 17:18
1,2K weergaven | 23 jan. 2019
The Latest on Synthetic Diamonds  Dr James Shigley  GIA at JCK [upl. by Winterbottom826]
Duration: 23:23
43,8K weergaven | 20 sep. 2017
Lapis Lazuli Mine Locations and Qualities by GIA [upl. by Weinstein537]
Duration: 1:03
39,6K weergaven | 21 jul. 2014
GIA’s Distance Education by GIA [upl. by Surtemed361]
Duration: 1:58
10,1K weergaven | 18 apr. 2014
Jason Payne “Beyond Gemstones The Applications of Lab Diamonds” [upl. by Paradies418]
Duration: 22:25
2,5K weergaven | 15 jan. 2019
Understanding Jadeite  GIA Knowledge Sessions Webinar Series [upl. by Loughlin]
Duration: 1:05:55
23,3K weergaven | 24 jun. 2021
Chinese Jewelry Market [upl. by Ytte500]
Duration: 2:53
3,5K weergaven | 15 feb. 2019
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Duration: 4:06
9,1K weergaven | 24 mei 2018
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Duration: 14:54
3,8K weergaven | 5 maanden geleden





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