billie hughes gemology（関連順）

0:35

IGT Cutting Class Conversations: Billie Hughes

Institute of Gem Trading

334 回視聴 - 5 年前

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Laboratories and Lapidaries Chat with Billie Hughes and Victoria Raynaud

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Gem Adventurer – Billie Hughes Interview

Lootess

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A Canary in the Ruby Mine: Low Temperature Heat Treatment Experiments on Burmese Ruby Seminar

American Gem Trade Association - AGTA

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1:44:16

Let's read & talk about Gemology with Richard W. Hughes, author of "Ruby & Sapphire"

Field Gemology by Vincent Pardieu

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3:14:33

"People & Places: Journey in Humanitarian Gemology", a webinar with Richard W. Hughes

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2:06:38

A Chat with Richard Hughes about Gemology Books, Book Collecting, and more / Justin K Prim / IGT

Justin K Prim

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5:03

Lands of Red and Blue

PalaInternational

1,137 回視聴 - 10 年前

55:18

The 'Three Microteers' Chat About Photomicrography

National Jeweler

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25:22

Episode 2: What does it take to be a good gemologist?

Paul Deasy Gemstones

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Gemology Schools: A Candid Review from Someone Who's Been There.

Gemology for Schmucks

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Let's read & talk about Gemology with Edward Boehm.

Field Gemology by Vincent Pardieu

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[Gemstone Secrets] How to Avoid Glass and Acquire Gems

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What to Read about Gems

Gemology for Schmucks

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2:05

Cutting & Recutting for Gem Business Course

Institute of Gem Trading

Source

Ruby, a historical review

Rui Galopim de Carvalho FGA DGA

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2:42:18

«Geology of Gems: 30+ years of a fascinating Scientific & Human Adventure », with Gaston Giuliani

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Gems In 60 Seconds

Gem Packet Knowhow

Gemology for Schmucks

2,606 回視聴 - 2 年前

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