A Comparison of Diamonds and Colored Stones | GIA Knowledge Sessions Webinar Series Published 2020-09-10 Download video MP4 360p Recommendations 59:17 Natural Green Diamonds | GIA Knowledge Sessions Webinar Series 1:12:13 Geology 101: Natural Processes that Form Colored Gemstones | GIA Knowledge Sessions Webinar Series 1:01:30 Rubies: Connecting Sources, Treatment and Science | GIA Knowledge Sessions Webinar Series 1:05:21 Sapphires: From Ceylon to Ethiopia | GIA Knowledge Sessions Webinar Series 1:03:52 Laboratory-Grown Diamonds: Updates and Identification | GIA Knowledge Sessions Webinar Series 1:05:12 Rough Diamonds: Natural Crystal Shapes & Surface Features | GIA Knowledge Sessions Webinar Series 1:03:33 Emerald Sources: The Grass is Greener on the Other Side | GIA Knowledge Sessions Webinar Series 1:07:41 A Look at Kimberlites: The Volcanoes that Carry Diamonds | GIA Knowledge Sessions Webinar Series 49:36 The Diamond Story 1:04:18 Geology 102: Natural Processes that Form Colored Gemstones | GIA Knowledge Sessions Webinar Series 1:09:47 The History of Diamond Cutting and Polishing Technology | GIA Knowledge Sessions Webinar Series 1:04:54 Furnaces, Fluxes and Filling: A Review of Ruby Treatment | GIA Knowledge Sessions Webinar Series 34:58 Where to find platinum nuggets - identify platinum nuggets - Geology of platinum deposits and ores 43:39 33. How to Identify Rocks 51:15 Natural Yellow & Orange Diamonds | GIA Knowledge Sessions Webinar Series 56:47 How did the Rocky Mountains Form? 59:58 An Overview of Pearl Identification Techniques | GIA Knowledge Sessions Webinar Series 14:43 Antikythera Fragment #9 - Ancient Tool Technology - The Scorper And Trammel Similar videos 53:11 Unusual Phenomenal Colored Stones | GIA Knowledge Sessions Webinar Series 58:55 The Science Behind Fancy Color Diamonds | GIA Knowledge Sessions Webinar Series 1:10:32 The Microworld of Gemstones | GIA Knowledge Sessions Webinar Series 52:40 Glowing Diamonds | GIA Knowledge Sessions Webinar Series 57:24 Diamond Color Treatment and Its Identification | GIA Knowledge Sessions Webinar Series 57:58 Color-Change Diamonds | GIA Knowledge Sessions Webinar Series 55:29 Colorless Diamonds | GIA Knowledge Sessions Webinar Series 1:01:42 Identifying Mineral Inclusions in Diamonds | GIA Knowledge Sessions Webinar Series 58:05 Laboratory-Grown Colored Gemstones: Crystal Growth Methods | GIA Knowledge Sessions Webinar Series 59:07 Gemstones from the Sea | GIA Knowledge Sessions Webinar Series 1:04:34 The Art of Photographing Minerals, Gemstones and Jewelry | GIA Knowledge Sessions Webinar Series 53:03 Quantifying Diamond Fluorescence and Its Visual Impact | GIA Knowledge Sessions Webinar Series More results