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Gia (gemological Institf America) (updated 2024-11-19)

Precision Cutting [upl. by Crystal]
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Duration: 2:39
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Duration: 0:22
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Duration: 2:16
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Duration: 0:59
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Duration: 4:11
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Duration: 3:14
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Duration: 0:32
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Duration: 1:01
17 weergaven | 1 maand geleden
Exploring Field Gemology with GIA Episode 2 [upl. by Kliment779]
Duration: 42:49
53 weergaven | 5 maanden geleden
Devi History [upl. by Leanora840]
Duration: 4:48
2,5K weergaven | 27 dec. 2018
세계에서 가장 권위 있는 보석감정사 자격증 GIA GG [upl. by Lise763]
Duration: 1:19
750 weergaven | 6 maanden geleden
Toow Diamond Institute Class EP02 [upl. by Kitty]
Duration: 3:22
1,2K weergaven | 6 mei 2013
CARA CEPAT MEMBEDAKAN RUBY DAN SPINEL DENGAN MENGGUNAKAN SPECTROSCOPE [upl. by Ricki984]
Duration: 4:43
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AGS Ideal® Report [upl. by Gilliette]
Duration: 2:21
990 weergaven | 2 maanden geleden
Diamantes certificados GIA [upl. by Akitahs306]
Duration: 9:51
1,4K weergaven | 12 sep. 2012
MENILAI BLUE STAR SAPPHIRE YG BERKUALITAS [upl. by Dupre755]
Duration: 3:59
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How to Choose a Diamond by GIA [upl. by Urana]
Duration: 4:22
690 weergaven | 1 apr. 2012
MENGENAL BATU CARNELIAN CHALCEDONY [upl. by Ekeiram]
Duration: 2:10
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Do you need a GIA report [upl. by Gustave]
Duration: 0:29
31 weergaven | 5 maanden geleden
CARA CEPAT MEMBEDAKAN BLUE SAPPHIRE DAN TANZANITE [upl. by Goltz]
Duration: 3:04
3,7K weergaven | 6 maanden geleden
Blue Star Sapphire From Sri Lanka by GIA [upl. by Ienttirb]
Duration: 1:06
45,2K weergaven | 21 jul. 2014
MENGENAL BATU TRAPICHE TOURMALINE [upl. by Cyndie]
Duration: 2:22
641 weergaven | 8 maanden geleden
MENGENAL JENISJENIS GARNET [upl. by Turley432]
Duration: 1:58
640 weergaven | 1 maand geleden
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Duration: 6:09
7K weergaven | 14 nov. 2023
MEMBEDAKAN NATURAL DAN SYNTHETIC LAB GROWN RUBY [upl. by Ennaid]
Duration: 3:02
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