Gemological Refractometer is your primary and most powerful tool in...
0:25
Gemological Refractometer is your primary and most powerful tool in...
2K views3 weeks ago
FacebookYashra Gems & Jewels
Gemstone Identification: How to Identify Gemstones
Gemstone Identification: How to Identify Gemstones
Apr 1, 2011
gemstones.com
Gemstone Identification Using The Refractometer
3:36
Gemstone Identification Using The Refractometer
1.1K viewsAug 3, 2022
YouTubeSherrie Taylor
Amazon.co.uk
Amazon.co.uk
3 months ago
amazon.co.uk
Gem-A Education: How to use the refractometer
9:48
Gem-A Education: How to use the refractometer
32.2K viewsOct 29, 2020
YouTubeGem-A
How To Identify a Gemstone using a refractometer
2:46
How To Identify a Gemstone using a refractometer
39.1K viewsJun 23, 2022
YouTubeDF HOMSY DIAMONDS
How to Use a Refractometer for Gem Testing Model FGR-003
1:48
How to Use a Refractometer for Gem Testing Model FGR-003
44.3K viewsApr 26, 2010
YouTuberaregemstones
12:01
Gem Tools: Refractometer
50.4K viewsMay 18, 2021
YouTubeGemstones
0:55
How to Authenticate Gemstones With the Presidium Refractive Ind…
30.2K viewsJun 1, 2011
YouTubePresidium Instruments
11:46
How do you KNOW what a gem is? [Refractometer Tutorial]
66.6K viewsMar 12, 2020
YouTubeGemology for Schmucks
12:44
Mastering the G.I.A. Refractometer with Norman Monteau
19 views2 weeks ago
YouTubeNorman Monteau
1:40
Digital Gemstone Refractometer Gem Testing
26.4K viewsNov 18, 2008
YouTubeGemLabTools
10:34
Unboxing Tools for Identifying Gemstones
27.6K viewsDec 11, 2018
YouTubeGemstones
0:45
Watch Gem Refractometer, RHG181 1.30-1.81 Presidium Gemstone lde…
Jan 17, 2023
@amazonBurnur
16:53
How to Identify Gemstones & Minerals: Specific Gravity
76.1K viewsJul 5, 2017
YouTubeMoreGems.com
4:58
Gem Testing Tutorial: how to use the Refractometer and measure th…
1 month ago
YouTubewhat the gem
11:07
Gem-n-Eye Digital Refractometer
19.4K viewsNov 10, 2017
YouTubeMineralab
0:59
Portable Gemstone and jewelry Authenticity Refractometer Jade I…
1 viewsAug 15, 2024
amazon
1:38
Refractometer RHG181 Gemstone Jewelry Refractive Index Tester 1.…
1 viewsDec 5, 2023
amazon
1:58
Refractometer : How to use?
847 viewsDec 3, 2018
YouTubeTay Kunming The Gemstone Man
1:03
A must-have product! RHG 1.30-1.81 Professional Gemstone Refractom…
1 month ago
YouTubeFresh Out The Box
0:24
Jewelry Refractometer, 1.30 to 1.81 Professional Gemstone ldentificati…
1 viewsAug 18, 2022
amazon
7:09
Gem-A education: How to use the polariscope
31.8K viewsJul 31, 2020
YouTubeGem-A
7:26
How to Use a Refractometer
37.6K viewsNov 21, 2015
YouTubeDiane Barrett
14:12
How to Identify Rocks and Minerals and Gemstones with a Spectrosco…
88.9K viewsFeb 19, 2018
YouTubeCaver461
4:56
How to ascertain the identity of common coloured gemstones
19.1K viewsApr 16, 2021
YouTubePresidium Instruments
0:30
Generic Jewelry Refractometer, Portable Gem Tester, Professiona…
50 viewsMar 6, 2024
amazon
8:30
Gem Identification - Polariscope Basic Use
86.2K viewsMay 16, 2014
YouTubeAwaken Crystals
17:44
How To ID Gemstones | Specific Gravity, Density & More!
72.8K viewsApr 19, 2022
YouTubeGemstones
4:42
How to read a refractometer | BRStv How-To
222.3K viewsMay 31, 2017
YouTubeBRStv - Saltwater Aquariums & Reef Tanks
See more videos
Static thumbnail place holder