Gem-n-Eye Digital Refractometer
11:06
Gem-n-Eye Digital Refractometer
8 viewsJul 19, 2018
mineralab.com
Gemstone Identification Using The Refractometer
3:36
Gemstone Identification Using The Refractometer
1.1K viewsAug 3, 2022
YouTubeSherrie Taylor
Gem Identification - Refractometer Basic Use
9:46
Gem Identification - Refractometer Basic Use
84.5K viewsMay 27, 2014
YouTubeAwaken Crystals
Gem-n-Eye Refractometer (Digital)
10:52
Gem-n-Eye Refractometer (Digital)
4 viewsAug 26, 2015
amazon
Learn to Use a Refractometer (Video) - International Gem Society
Learn to Use a Refractometer (Video) - International Gem Society
Apr 22, 2020
gemsociety.org
How do you KNOW what a gem is? [Refractometer Tutorial]
11:46
How do you KNOW what a gem is? [Refractometer Tutorial]
67.8K viewsMar 12, 2020
YouTubeGemology for Schmucks
How to Authenticate Gemstones With the Presidium Refractive Index Meter
0:55
How to Authenticate Gemstones With the Presidium Refractive Ind…
30.3K viewsJun 1, 2011
YouTubePresidium Instruments
2:46
How To Identify a Gemstone using a refractometer
39.7K viewsJun 23, 2022
YouTubeDF HOMSY DIAMONDS
1:48
How to Use a Refractometer for Gem Testing Model FGR-003
44.4K viewsApr 26, 2010
YouTuberaregemstones
1:40
Digital Gemstone Refractometer Gem Testing
26.4K viewsNov 18, 2008
YouTubeGemLabTools
4:58
Gem Testing Tutorial: how to use the Refractometer and measure th…
143 views2 months ago
YouTubewhat the gem
48:09
Gemmology lesson no.2 The Refractometer This is a video tuto…
28 views8 months ago
YouTubeMark Smith
12:01
Gem Tools: Refractometer
51.4K viewsMay 18, 2021
YouTubeGemstones
6:07
How to Use the Refractometer
1.2K viewsApr 27, 2023
YouTubeUnited States Gemological Institute
1:53
What is a Refractometer?
4.5K viewsFeb 6, 2020
YouTubeJTV
2:07
Identify Your GEM Using Raman Spectrometer
28.8K viewsOct 18, 2023
YouTubeTechnoS Instruments
0:59
giceylon on TikTok
4.7K views5 months ago
TikTokgiceylon.com
Presidium® Refractive Index Meter
6.6K viewsSep 29, 2017
YouTubeStuller, Inc.
8:30
Gem Identification - Polariscope Basic Use
86K viewsMay 16, 2014
YouTubeAwaken Crystals
Amazon.co.uk
5 months ago
amazon.co.uk
0:30
Using Gem Refractometer 💎#refractometer #gemrefractomete…
3.5K viewsOct 19, 2023
YouTubeDasith Kemil
7:09
Gem-A education: How to use the polariscope
34.4K viewsJul 31, 2020
YouTubeGem-A
1:12
Presidium Gem Tester II (PGT II) - Performing a test and Reading Re…
25.4K viewsSep 7, 2020
YouTubePresidium Instruments
0:45
Watch Gem Refractometer, RHG181 1.30-1.81 Presidium Gemstone lde…
Jan 17, 2023
@amazonBurnur
11:56
Using the Refractometer.MOV
36.3K viewsFeb 21, 2012
YouTubeStarla Turner
1:54
How to use a digital refractometer
45.5K viewsJun 3, 2020
YouTubeScience etc
1:27
Jade & Gems on TikTok
443 views6 months ago
TikTokjade_and_gems
1:36
Presidium Refractive Index Meter II Software
11.1K viewsOct 20, 2011
YouTubePresidium Instruments
13:14
Let's Test Gemstones! Presidium Gem Tester II (PGT II) - Testing Em…
26.4K viewsJul 17, 2019
YouTubeTexas Gal Treasures
9:15
EasyPlus™ Refractometer: Overview, Measurements, Tests & …
6.8K viewsJan 13, 2021
YouTubeLaboratory Solutions from METTLER TOLEDO
See more videos
Static thumbnail place holder