Evan Smith (keynote): “The Formation of Type IIa and IIb Diamonds” GIA (Gemological Institute of America) 37:04 5 years ago 6 750 Скачать Далее
The Unexpected Origins of Big Diamonds | Dr. Evan Smith | GIA at JCK GIA (Gemological Institute of America) 21:53 6 years ago 11 439 Скачать Далее
ODH029: How the biggest and best diamonds defy exploration – Evan Smith Ore Deposits Hub 1:26:39 Streamed 4 years ago 5 087 Скачать Далее
Andy Moore & Herb Helmstaedt - The origin of exceptional type-IIa and IIb diamonds Geological Society of South Africa 55:59 1 year ago 182 Скачать Далее
The Unique Story of Natural Diamond | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 45:43 4 years ago 22 134 Скачать Далее
Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 58:48 2 years ago 11 658 Скачать Далее
visual difference between DIF type 2 A and DIF natural Diamond , live expert guidance Allyours Jewels 1:30 3 years ago 1 509 Скачать Далее
Where Do Yellow Type Ib Diamonds Form in Nature? | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 1:02:05 3 years ago 4 099 Скачать Далее
Rough Diamonds: Natural Crystal Shapes & Surface Features | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 1:05:12 3 years ago 42 427 Скачать Далее
D. Graham Pearson (keynote): “Our Understanding of Diamond Formation” GIA (Gemological Institute of America) 32:01 5 years ago 2 139 Скачать Далее
Diamond Color Treatment and Its Identification | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 57:24 4 years ago 15 502 Скачать Далее
Wuyi Wang (keynote): "Canary Yellow Diamonds" GIA (Gemological Institute of America) 33:17 5 years ago 1 101 Скачать Далее
A Comparison of Diamonds and Colored Stones | GIA Knowledge Sessions Webinar Series GIA (Gemological Institute of America) 1:26:52 3 years ago 45 313 Скачать Далее
