How to Use a Gem Torch Correctly! 🔦💎 | Gemstone Testing & Identification Guide
0:19
How to Use a Gem Torch Correctly! 🔦💎 | Gemstone Testing & Identification Guide
78.4K viewsFeb 17, 2025
YouTubeUpcycled
How to Identify Gemstones & Minerals: Specific Gravity
16:53
How to Identify Gemstones & Minerals: Specific Gravity
77.9K viewsJul 5, 2017
YouTubeMoreGems.com
GIA Gemological Laboratory by GIA
5:46
GIA Gemological Laboratory by GIA
152.1K viewsSep 16, 2015
YouTubeGIA (Gemological Institute of America)
Presidium Gem Tester (PGT) - Performing A Test & Reading
1:26
Presidium Gem Tester (PGT) - Performing A Test & Reading
30.8K viewsAug 15, 2012
YouTubeA&A Jewelry Supply
Top Gemology Tools You Need: A Complete Guide for Beginners & Experts #gemstonetesting
16:47
Top Gemology Tools You Need: A Complete Guide for Beginners & Experts #gemstonetesting
2.3K viewsMay 8, 2025
YouTubeLittle Movie Magic🌟
Hello all! I just posted 6 full length tutorials on Υουtυbe! One for each gem identification instrument. Check it out. I’m happy to be sharing what I know with you and help you successfully identify your gems. If you’re not actively practicing any of that but you just like my videos, then you’ll like them too. Get to know more about gem testing. Let me know what you think. #gemtok #gemology #peridot #gemologist
0:58
Hello all! I just posted 6 full length tutorials on Υουtυbe! One for each gem identification instrument. Check it out. I’m happy to be sharing what I know with you and help you successfully identify your gems. If you’re not actively practicing any of that but you just like my videos, then you’ll like them too. Get to know more about gem testing. Let me know what you think. #gemtok #gemology #peridot #gemologist
6.7K views7 months ago
TikTokwhat_the_gem
Let's Test Gemstones! Presidium Gem Tester II (PGT II) - Testing Emerald, Diamond, Sapphire, Garnet
13:14
Let's Test Gemstones! Presidium Gem Tester II (PGT II) - Testing Emerald, Diamond, Sapphire, Garnet
26.9K viewsJul 17, 2019
YouTubeTexas Gal Treasures
1:41
How to Perform a Test Using the Presidium Gem Indicator (PGI)
42.2K viewsJan 30, 2015
YouTubePresidium Instruments
5:35
Gem Identification - Specific Gravity Made Easy
102.2K viewsMay 8, 2014
YouTubeAwaken Crystals
How To Test GEM Module On Ford Trucks
Sep 20, 2022
vehiclefreak.com
12:00
Presidium Gem Tester II (PGT II) - Testing Ruby, Diamond, Sapphire, Gemstone, Peridot
26.6K viewsFeb 6, 2020
YouTubeTexas Gal Treasures
1:35:01
The Importance of Gemstone Testing - Dr Lore Kiefert
332 viewsJan 19, 2023
YouTubeBrankoGems
5:00
How To Test Amethyst Gemstone With Diamond Selector II Tool (Episode 1)
9.5K viewsJan 21, 2022
YouTubeRural Life KH
17:44
How To ID Gemstones | Specific Gravity, Density & More!
75.2K viewsApr 19, 2022
YouTubeGemstones
19:13
How to identify Gemstones with the help of Specific Gravity | DU-GEMOLOGY
60.2K viewsDec 18, 2020
YouTubeDu Gemology (Institute of Gemology & Laborat…
Easy Ways to Identify Raw Gemstones
98K views3 months ago
wikiHowAlisa Thorp
1:48
How to Use a Refractometer for Gem Testing Model FGR-003
44.6K viewsApr 26, 2010
YouTuberaregemstones
0:13
Professional Gem Checking – How Experts Identify Real Gemstones
2.7K viewsFeb 16, 2025
YouTubeUpcycled
11:51
Presidium Gem Tester II Review and how to use it testing stones at home
20.3K viewsJan 30, 2020
YouTubeYour Review Channel
1:40
Digital Gemstone Refractometer Gem Testing
26.6K viewsNov 18, 2008
YouTubeGemLabTools
9:47
Gem Identification - Refractometer Basic Use
85.5K viewsMay 27, 2014
YouTubeAwaken Crystals
1:05
Presidium Gem Indicator (PGI) Performing a Test and Reading Results
10.6K viewsApr 21, 2021
YouTubePresidium Instruments
13:38
How to Gem Tester Jade @ Satin Crystals
3.5K viewsFeb 17, 2022
YouTubesatincrystals
18:24
Presidium Gem Tester II (PGT II) - Testing Emerald, Diamond, Sapphire, Ruby, Nephrite
228.3K viewsNov 27, 2018
YouTubeTexas Gal Treasures
1:12
Presidium Gem Tester II (PGT II) - Performing a test and Reading Results
27K viewsSep 7, 2020
YouTubePresidium Instruments
4:51
Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Jewelry Test Tool
264.5K viewsJan 7, 2015
YouTubeGain Express
0:46
The Truth About Synthetic Gemstones in Bracelets
2.4K views3 months ago
TikToksanjana_timsina
3:52
How to test Specific Gravity / stone density - identifying natural whetstones. S.G. testing jade
13.3K viewsOct 24, 2021
YouTubeWild Whetstones
4:20
How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA
1.4M viewsJul 21, 2014
YouTubeGIA (Gemological Institute of America)
See more