Gemological Science

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Gemological Science International (GSI): Color
Gemological Science International (GSI)
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2:16

Gemological Science International (GSI): Clarity
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4:06

Gemological Science International (GSI) Lab Tour
Gemological Science International (GSI)
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3:58

Gemological Science International (GSI): Laboratory-Grown Diamonds
Gemological Science International (GSI)
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2:07

Gemological Science International (GSI): Carat Weight
Gemological Science International (GSI)
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5:18

How To Know If Your Diamond Jewelry Is “Real” And Has Natural Diamonds
Gemological Science International (GSI)
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2:02

Gemological Science International (GSI): Cut + Light Performance
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1:34

Basic Methods for Identifying Gemstones 🔍 Gem Talks | Episode 02
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2:12

GSI: Diamond Education Courses
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2:58

Gemological Science International (GSI): Cut + Diamond Finish
Gemological Science International (GSI)
321 views
2:44

Gemological Science International
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286 views
16:34

Mark Gershburg & Debbie Azar, Co-Founders of GSI: Interviewed by The New Jeweller Group
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0:19

Diamonds: Formation, Properties & Sparkle!
NinaVova
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0:58

Do you know what this green gemstone is? #gemology #gemstone #gems #science #geology
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1:01

Natural Earth-Mined Or Laboratory Grown Diamond? #gemology #labdiamonds #EarthMinedDiamond
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6:03

CEO of GSI, Mark Gershburg: Interviewed by The New Jeweller Group at IIJS Mumbai 2016
Gemological Science International (GSI)
309 views
11:50

GSI's Debbie Azar On BOLD TV: The Differences Between Natural and Lab Grown Diamonds
Gemological Science International (GSI)
152 views
11:59

AIGS - Asia's Leading Gemological Institute. 42 Years and counting
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