Gia Gemological Institute Of America

Rare Mozambique Gemstones: The Beauty of Paraíba Tourmaline | GIA 0:13
Rare Mozambique Gemstones: The Beauty of Paraíba Tourmaline | GIA GIA (Gemological Institute of America) 0 2 дня назад
AGS Ideal® Report 2:21
AGS Ideal® Report GIA (Gemological Institute of America) 1,022 1 месяц назад
Gems of Northern Madagascar 14:54
Gems of Northern Madagascar GIA (Gemological Institute of America) 4,074 6 месяцев назад
Natural & Lab-Grown Diamonds: What's the Difference? 1:55
Natural & Lab-Grown Diamonds: What's the Difference? GIA (Gemological Institute of America) 6,121 7 месяцев назад
DIAMONDS TO LOOK FOR AT THE CORONATION 0:47
DIAMONDS TO LOOK FOR AT THE CORONATION GIA (Gemological Institute of America) 5,561 1 год назад
GIA Knowledge Sessions | The Fully Digital GIA Diamond Dossier® 8:00
GIA Knowledge Sessions | The Fully Digital GIA Diamond Dossier® GIA (Gemological Institute of America) 12,535 2 года назад
第40回 GIA Tokyo GemFest のご案内真珠の構造色について 1:00:09
第40回 GIA Tokyo GemFest のご案内真珠の構造色について GIA (Gemological Institute of America) 3,437 2 года назад
Amrapali 3:41
Amrapali GIA (Gemological Institute of America) 16,136 2 года назад
第39回 GIA Tokyo GemFest: スピネルの歴史と科学 1:03:27
第39回 GIA Tokyo GemFest: スピネルの歴史と科学 GIA (Gemological Institute of America) 3,642 2 года назад
Gem Palace 6:35
Gem Palace GIA (Gemological Institute of America) 16,606 2 года назад
Geology 101: Natural Processes that Form Colored Gemstones | GIA Knowledge Sessions Webinar Series 1:12:13
Geology 101: Natural Processes that Form Colored Gemstones | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 107,283 4 года назад
GIA’s Professional Education by GIA 5:38
GIA’s Professional Education by GIA GIA (Gemological Institute of America) 60,132 9 лет назад
GIA Gemological Laboratory by GIA 5:46
GIA Gemological Laboratory by GIA GIA (Gemological Institute of America) 148,190 9 лет назад
How to Use the GIA iD100® 13:26
How to Use the GIA iD100® GIA (Gemological Institute of America) 12,628 4 года назад
The Unexpected Origins of Big Diamonds | Dr. Evan Smith | GIA at JCK 21:53
The Unexpected Origins of Big Diamonds | Dr. Evan Smith | GIA at JCK GIA (Gemological Institute of America) 11,588 7 лет назад
115th Gemstone Gathering | Precision Cut: How, Why and When? 53:03
115th Gemstone Gathering | Precision Cut: How, Why and When? GIA (Gemological Institute of America) 3,857 4 года назад
Unusual Phenomenal Colored Stones | GIA Knowledge Sessions Webinar Series 53:11
Unusual Phenomenal Colored Stones | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 11,567 3 года назад
The Science Behind Fancy Color Diamonds | GIA Knowledge Sessions Webinar Series 58:55
The Science Behind Fancy Color Diamonds | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 13,662 4 года назад
Identifying Mineral Inclusions in Diamonds | GIA Knowledge Sessions Webinar Series 1:01:42
Identifying Mineral Inclusions in Diamonds | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 22,051 3 года назад
Gems of Northern Madagascar 14:54
Gems of Northern Madagascar GIA (Gemological Institute of America) 4,074 6 месяцев назад
Gemology Schools: A Candid Review from Someone Who's Been There. 15:25
Gemology Schools: A Candid Review from Someone Who's Been There. Gemology for Schmucks 10,798 2 года назад
Inside an Emerald Cutting Factory 8:37
Inside an Emerald Cutting Factory GIA (Gemological Institute of America) 278,102 4 года назад
An Exclusive View of the World's Biggest Jade Auction | GIA Knowledge Sessions Webinar Series 1:00:13
An Exclusive View of the World's Biggest Jade Auction | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 11,355 4 года назад
Quantifying Diamond Fluorescence and Its Visual Impact | GIA Knowledge Sessions Webinar Series 53:03
Quantifying Diamond Fluorescence and Its Visual Impact | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 15,329 2 года назад
Furnaces, Fluxes and Filling: A Review of Ruby Treatment | GIA Knowledge Sessions Webinar Series 1:04:54
Furnaces, Fluxes and Filling: A Review of Ruby Treatment | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 13,482 4 года назад
The Art of Photographing Minerals, Gemstones and Jewelry | GIA Knowledge Sessions Webinar Series 1:04:34
The Art of Photographing Minerals, Gemstones and Jewelry | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 20,200 4 года назад
Diamond shopping Trust GIA Gemological Institute of America 0:16
Diamond shopping Trust GIA Gemological Institute of America Events 7 1 год назад
Minerals Discovered and Named at GIA | GIA Knowledge Sessions Webinar Series 59:51
Minerals Discovered and Named at GIA | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 4,849 3 года назад
Laboratory-Grown Colored Gemstones: Crystal Growth Methods | GIA Knowledge Sessions Webinar Series 58:05
Laboratory-Grown Colored Gemstones: Crystal Growth Methods | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 8,908 4 года назад
Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series 58:48
Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 12,500 3 года назад
How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA 4:20
How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA GIA (Gemological Institute of America) 1,309,809 10 лет назад
Prima Jewelers Offers The Gemological Institute of America, or GIA, 0:51
Prima Jewelers Offers The Gemological Institute of America, or GIA, Peacock Jewelers 130 9 лет назад
Assembled Opal by GIA 0:24
Assembled Opal by GIA GIA (Gemological Institute of America) 3,413 10 лет назад
Tools of the Trade | GIA Knowledge Sessions Webinar Series 57:46
Tools of the Trade | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 15,063 4 года назад
Highlights from Gems & Gemology: Spring 2021 Issue | GIA Knowledge Sessions Webinar Series 58:24
Highlights from Gems & Gemology: Spring 2021 Issue | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 3,610 3 года назад
Diamond Color Treatment and Its Identification | GIA Knowledge Sessions Webinar Series 57:24
Diamond Color Treatment and Its Identification | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 16,316 4 года назад

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