1:47
AGS Ideal® Report

981 views • 2 months ago
14:54
Gems of Northern Madagascar

2.8K views • 2 months ago
1:55
Natural & Lab-Grown Diamonds: What's the Difference?

3.6K views • 3 months ago
8:00
GIA Knowledge Sessions | The Fully Digital GIA Diamond Dossier®

11K views • 1 year ago
1:00:09
第40回 GIA Tokyo GemFest のご案内真珠の構造色について

3.1K views • 1 year ago
1:02
Unfold the Future: The New Digital Diamond Dossier®

6.6K views • 2 years ago
3:41
Amrapali

15K views • 2 years ago
1:03:27
第39回 GIA Tokyo GemFest: スピネルの歴史と科学

3.4K views • 2 years ago
6:35
Gem Palace

15K views • 2 years ago
13:11
Surana Jewellers

20K views • 2 years ago
2:50
The Jewelry of Moguls and Maharajas

27K views • 2 years ago
56:23
第38回 GIA Tokyo GemFest: 地質学１０１ 天然有色宝石の形成プロセス

2.8K views • 2 years ago
59:03
关于锂紫玉及其他粉红色宝石的宝石学研究 | GIA 知识交流

3.1K views • 2 years ago
55:13
X 射线及其在宝石学中的应用 | GIA 知识交流

1.6K views • 2 years ago
53:03
Quantifying Diamond Fluorescence and Its Visual Impact | GIA Knowledge Sessions Webinar Series

14K views • 2 years ago
0:31
Feel Confident in Your Diamond I Mila & Derrick

1M views • 2 years ago
1:01:00
第37回 GIA Tokyo GemFest: 日本の養殖真珠の魅力

3.9K views • 2 years ago
57:16
A Glimmer of Hope: The World's Most Famous Blue Diamond | GIA Knowledge Sessions Webinar Series

10K views • 2 years ago
1:00
The GIA iD100® - The Ultimate Diamond Detecting Triple-Threat

10K views • 2 years ago
1:05
Consider a Career in Gems and Jewelry

5.2K views • 2 years ago
4:07
Gianmaria Buccellati Foundation Jewelry Design Award Winner Interview Part 2, 2020 - Cantonese | GIA

1.7K views • 2 years ago
2:06
Gianmaria Buccellati Foundation Jewelry Design Award Winner Interview Part 2, 2020 | GIA

1.7K views • 2 years ago
58:06
钻石原石：天然晶体形状和表面特征 | GIA 知识交流

2.1K views • 2 years ago
59:21
GIA 彩色宝石鉴定实验室对帕拉伊巴碧玺的鉴定 | GIA 知识交流

2.6K views • 2 years ago
3:32
90 Years of Discovery and Innovation

4.3K views • 2 years ago
58:48
Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series

11K views • 2 years ago
53:11
Unusual Phenomenal Colored Stones | GIA Knowledge Sessions Webinar Series

10K views • 2 years ago
55:34
第36回 GIA Tokyo GemFest: ガーネットの楽しみ―宝石として、そして科学の友として―

4.2K views • 2 years ago
1:05:05
Playing the Blues: An Overview of Sapphire Treatment | GIA Knowledge Sessions Webinar Series

14K views • 2 years ago
1:05:08
Interesting Discoveries from the GIA Laboratory | GIA Knowledge Sessions Webinar Series

8.9K views • 2 years ago
Load More