 | USA - GIA Visiting in Gemological Institute of America, Santa Monica. |
 | Indian Institute of Gemology Just Dial |
 | GIA Diamond Grading Guide: How to Buy a Diamond An informational video about how the Gemological Institute of America grades diamonds and provides consumers with unbiased diamond grading reports. A GIA diamond grading report will make you sure of your diamond's value and your diamond's quality. Learn more about diamond grading reports at http://gia4cs.gia.edu |
 | Gemology of precious opal Gemology of precious opal. Opal, the queen of gems - besides Australia, there is only one other place in the world where one finds crystal opal in commercial quantities: the Brazilian village of Pedro Segundo. For other language options (German, Spanish,French, Italian, Portugese, Mandarin) visit our website. www.gemfilmchannel.org |
 | Diamond School Istanbul ( Show TV ) School of Gemology in Istanbul. www.lidadiamond.com www.martinmetin.com |
 | Cutting the Famous Jubilee Diamond Faceting a duplicate of the world's most precisely cut large diamond requires an accurate faceting machine, careful technique and an understanding of crystallography and gemology as well as a bit of the gem's history. |
 | Gemology and travel: Ruby mining in Andilamena, Madagascar Mining for rubies on the hills around "Moramanga carrieres" near Andilamena in Madagascar is not an easy task as the area is isolated in the deep of Madagascar Jungle. On this video you can see how the Malagasy miners work in order to enable the other miners to breath in the galleries they dig to search for rubies. The galleries can be 50 meters deep and sometimes up to 100 meters long. The oxygen there is rare as people work with candles and electricity is not available. Hard job but ingenious people... For more info: http://www.fieldgemology.org/gemology%20madagascar%202005.php |
 | gemology and travel: Grafting South Sea cultured pearls Grafting is a surgical implantation of a shell nucleus and a tissue graft (a small piece of mantle tissue) into the pearl oyster in order to produce south sea cultured pearls. It is performed at the pearl farm with a selected donor oyster which will be sacrificed and a host oyster. |
 | Gemology and travel: Jagdalek ruby mines, Afghanistan July 2006, here a global view of the Jagdalek ruby mining area in Afghanistan. This place is known to have produce exceptional gems but nowadays ruby mining has officialy stopped. The area is deserted but probably some low scale mining is performed at night in the deep of the trenches. For more details, you can visit the following page: http://www.fieldgemology.org/gemology%20afghanistan%20ruby%20jagdalek%20emerald%20panjshir.php All the best, |
 | Diamond Weight Estimations on GT Pro A short demonstration on the use of the Diamond Weight Estimator in Gemology Tools Professional. |
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