How To Become A Gemologist? | How To Start Your Career In Gemology Gemstones 7:34 2 years ago 109 895 Далее Скачать
Mineralogist Answers Gemstone Questions From Twitter | Tech Support | WIRED WIRED 17:45 10 months ago 887 796 Далее Скачать
Geology 101: Natural Processes that Form Colored Gemstones | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 1:12:13 4 years ago 107 410 Далее Скачать
Gemology Careers | How to Become a Gemologist Part 2! Gemstones 8:42 2 years ago 28 393 Далее Скачать
Latest trends from jewelers and gemologist #jewelry #gemstoneinvestment #gemstone #diamonds Lana Herzog 0:53 2 days ago 232 Далее Скачать
Mastering Gemology: The Complete Beginner's Guide to Gemstones #gems Roots Rocks 2:45 10 months ago 2 723 Далее Скачать
That's how you'll find RUBIES and SAPPHIRES - #crystals #gems Cabo Da Nau 9:27 9 months ago 1 900 185 Далее Скачать
Green Gemstones: History, Lore and Gemology | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 55:47 3 years ago 9 872 Далее Скачать
Is Gemology a Good Career Choice? (Common Questions Answered) Haywoods Gems 6:26 2 years ago 3 632 Далее Скачать
Red Gemstones: History, Lore and Gemology | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 1:08:31 3 years ago 10 500 Далее Скачать
What is a Loupe? #gemstones #gemology #geology #science #loupe Gemstones 0:29 1 year ago 31 330 Далее Скачать
Do Pearls Dissolve in Vinegar? #gems #gemology #science Avi The Gem Guy 0:16 1 year ago 4 123 593 Далее Скачать
