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https://septools.com/product/gem-n-eye-digital-refractometer/
The Gem-N-Eye III digital handheld refractometer has been a customer favorite for decades. Provides precise digital RI readout in seconds. The Gem-N-Eye III digital handheld refractometer measures reflectivity of faceted gems, then applies internal algorithms to calculate refractive index and suggest or confirm gemstone-identity without the use of toxic fluids.
https://www.mineralab.com/Gem-n-Eye.htm/
Unlike a traditional critical angle refractometer, the Gem-n-Eye requires no toxic fluid, and gives a digital readout in the form of a Refractive Index to 3 decimal places, along with the Gemstone names that share that RI value! The Gem-n-Eye does this by measuring Reflectivity, a property closely related to Refractive Index, and through a ...5/5(6)
https://www.amazon.com/Ade-Advanced-Optics-Refractometer-Gemological/dp/B00HYJSNDG
This digital gem refractometer is designed to measure the refractive index of gems with high accuracy ± 0.007 RI. With the full range from 1.400 to 3.000 RI, it can be used to test almost all kinds of gem.2.5/5(2)
https://www.amazon.com/refractometer-gemstones/s?k=refractometer+for+gemstones
Jewelry Refractometer, Portable Lightweight 1.30-1.81 Professional Gemstone ldentification Gem Refractometer for Measuring The Refractive Index Jewelry Test Tool 5.0 out of 5 stars 1 $82.49 $ 82 . 49 $86.69 $86.69
https://www.mineralab.com/JewelersEye/
The Jeweler's Eye is not a type of refractometer, yet its measurements bear many similarities thus. But unlike a critical angle refractometer that is limited to measuring gems with refractive indices not exceeding 1.81, the Jeweler's Eye can read high R.I. gems …Brand: Mineralab
https://www.kassoy.com/prodcat/refractometers.asp
Gemological Refractometers. A gemological refractometer is your primary and most powerful tool in gemstone indenfication. Kassoy's wide selection of refractometers and digital refractometers provide fast and easy refractive index measurements. Contact …
https://www.youtube.com/watch?v=UfKM6EqC_l8
Nov 10, 2017 · The manufacturer's demonstration of the Gem-n-Eye Digital Refractometer and Gemstone Computer, including how to measure the Refractive Index of Gems to confi...Author: Mineralab
https://www.alibaba.com/showroom/gem-digital-refractometer.html
Portable gem digital display refractometer Jewelry inspection index test instrument gem digital refractometer without oil test. Ready to Ship. ... 2 YRS. 4.4 (28) Contact Supplier. Add to Favorites 1/5. gem-n-eye digital refractometer external monochromatic yellow light gem refractomete. Ready to Ship. $63.00-$73.00 / Set. 1 Set (Min. Order ...
https://www.opticsfactory.com/digital-gem-refractometer-gemstone-tool-foctory-selling/
This digital refractometer cover the full range from 1.30 to 2.99RI, The normal oil type refractometers range is usually 1.30 to 1.81, which have only half of the range of this New product! If you want to test gems which has higher IR above 1.81, then you have to use this digital refractometer. It is an ideal instrument to identify the gem stones.
http://www.gemtestinginstruments.com/supplier-71465-gem-refractometer
Jewelry Optical Gem Refractometer With Polarizing Lens Stainless steel table Contact Now Jewelry Optical Equipment With 0.002 Accuracy With Polarizing Lens Gem Refractometer Model number: FGR-002A Type Testers & Measurements Testing scale 1.35-1.85 Accuracy 0.002 Color White Size 140mm*42mm*95mm ...
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