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

Introduction to the World’s Foremost Authority on Diamond and Gemstone Knowledge by GIA

Duration: 5:08
13.5K views | Jan 1, 2009

How to Choose a Diamond 10Minute GIA Diamond Grading Guide by GIA

Duration: 9:49
308.1K views | Jul 21, 2014

GIA Symposium 2018

Duration: 3:38
967 views | Oct 25, 2018

How to Choose a Diamond FourMinute GIA Diamond Grading Guide by GIA

Duration: 4:20
1.3M views | Jul 21, 2014

LaboratoryGrown Diamonds Updates and Identification GIA Knowledge Sessions Webinar Series

Duration: 1:03:52
84.5K views | Apr 17, 2020

Diamond shopping Trust GIA

Duration: 1:01
579.8K views | Feb 5, 2019

The Latest on Synthetic Diamonds Dr James Shigley GIA at JCK

Duration: 23:23
44K views | Sep 20, 2017

Quantifying Diamond Fluorescence and Its Visual Impact GIA Knowledge Sessions Webinar Series

Duration: 53:03
16K views | Dec 16, 2021

4Cs of Diamond Quality Diamond Color Grading by GIA

Duration: 0:58
103.8K views | Jul 21, 2014

How to Classify a Lead Glass–Filled Ruby by GIA

Duration: 5:28
164.5K views | Jul 21, 2014

A Glimmer of Hope The Worlds Most Famous Blue Diamond GIA Knowledge Sessions Webinar Series

Duration: 57:16
11.1K views | Nov 18, 2021

Buying a Diamond Trust GIA

Duration: 0:15
3.6M views | May 4, 2020

Understanding Jadeite GIA Knowledge Sessions Webinar Series

Duration: 1:05:55
24.2K views | Jun 24, 2021

How to Read a GIA Grading Report Video by GIA

Duration: 3:24
58.2K views | Jul 21, 2014

Diamond shopping Trust GIA

Duration: 1:00
183.6K views | Jan 28, 2019

A Gemstone’s Journey through the GIA Laboratory GIA Knowledge Sessions Webinar Series

Duration: 57:21
5.2K views | Jul 22, 2021

4Cs of Diamond Quality Diamond Cut Grading by GIA

Duration: 1:25
62.8K views | Jul 21, 2014

4Cs of Diamond Quality Diamond Clarity Grading by GIA

Duration: 1:24
89.2K views | Apr 18, 2014

LaboratoryGrown Diamonds from China GIA Knowledge Sessions Webinar Series

Duration: 59:04
13.2K views | May 14, 2020

GIA Gemological Laboratory by GIA

Duration: 5:46
149.1K views | Sep 16, 2015

Heat Treating Montana Sapphire

Duration: 17:42
178.6K views | Jul 26, 2016

Geology 102 Natural Processes that Form Colored Gemstones GIA Knowledge Sessions Webinar Series

Duration: 1:04:18
19.9K views | Apr 2, 2021

Minerals of California

Duration: 7:11
33.6K views | May 2, 2019

Identifying Mineral Inclusions in Diamonds GIA Knowledge Sessions Webinar Series

Duration: 1:01:42
22.7K views | May 28, 2021

Jaipurs Emerald Industry

Duration: 2:07
104.7K views | Mar 19, 2020

Organizing the Smithsonians Mineral Collection

Duration: 4:06
9.3K views | May 24, 2018

GIA’s Distance Education by GIA

Duration: 1:58
10.4K views | Apr 18, 2014

Gems and Minerals at the Smithsonian

Duration: 5:05
38.8K views | May 24, 2018

Diamond Exploration amp Mining GIA Knowledge Sessions Webinar Series

Duration: 59:04
11.3K views | Jun 11, 2020

Geology 101 Natural Processes that Form Colored Gemstones GIA Knowledge Sessions Webinar Series

Duration: 1:12:13
109.6K views | Jul 6, 2020