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Invidious > Channel > International School of Gemology

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YT 14 minutes 59 seconds 92 views Shared 5 days ago International School of Gemology The Critical Angle: Diamond Grading Study from the International School of Gemology YT 2 minutes 46 seconds 40 views Shared 3 months ago International School of Gemology ISG Certified Gemstone Dealer Introduction Video YT 6 minutes 33 seconds 971 views Shared 5 months ago International School of Gemology Scientific Investigation of Cremation Diamonds: Exposing the Hoax of Cremation or Memorial Diamonds.

YT 1 minute 11 seconds 395 views Shared 7 months ago International School of Gemology Introduction to Gemology Course from the International School of Gemology YT 3 minutes 64 views Shared 8 months ago International School of Gemology International School of Gemology Registered Gemologist Appraiser Introduction YT 10 minutes 36 seconds 236 views Shared 1 year ago International School of Gemology Protect Your Shipments: Hometown Jeweler Support from the International School of Gemology

YT 1 minute 39 seconds 199 views Shared 1 year ago International School of Gemology Diamond Grading Tray YT 1 minute 35 seconds 1.2K views Shared 1 year ago International School of Gemology Diamond Crystal Comparison YT 6 minutes 7 seconds 956 views Shared 1 year ago International School of Gemology How to Use the Refractometer

YT 3 minutes 53 seconds 8.3K views Shared 1 year ago International School of Gemology How to Use the Polariscope YT 23 minutes 53 seconds 932 views Shared 1 year ago International School of Gemology Inductive v Deductive Gem Identification: ISG Journey Thru Gemology Online Classroom YT 41 minutes 44 seconds 6.3K views Shared 1 year ago International School of Gemology Diamond Grading Essentials: ISG Journey Thru Gemology Online Classroom

YT 2 minutes 11 seconds 415 views Shared 2 years ago International School of Gemology Diamond Cut Grading Demonstration YT 3 minutes 39 seconds 132 views Shared 2 years ago International School of Gemology How the ISG Sarin Works YT 1 minute 20 seconds 821 views Shared 2 years ago International School of Gemology International School of Gemology Diamonds Course

YT 3 minutes 34 seconds 6.1K views Shared 8 years ago International School of Gemology Ant Hill Garnets from the International School of Gemology YT 15 minutes 26 seconds 69K views Shared 10 years ago International School of Gemology The Oregon Sunstone Story from the International School of Gemology YT 5 minutes 34 seconds 2K views Shared 10 years ago International School of Gemology International School of Gemology Story of Copper

YT 5 minutes 30 seconds 1.5K views Shared 10 years ago International School of Gemology International School of Gemology Bismuth YT 4 minutes 49 seconds 4.4K views Shared 10 years ago International School of Gemology International School of Gemology Seraphinite YT 4 minutes 47 seconds 1.4K views Shared 10 years ago International School of Gemology International School of Gemology Petrol in Quartz