Media Summary: This is not a typical unboxing! Today, expert gemologist Charles is walking our host Sarah through four basic tests that all ... A GIA gemologist explains the benefits and complexities of using a An optical spectrometer using a diffraction grating. Looking in the viewfinder is the spectrum with an overlaid frequency scale.
Best Gemstone Tool Spectroscope - Detailed Analysis & Overview
This is not a typical unboxing! Today, expert gemologist Charles is walking our host Sarah through four basic tests that all ... A GIA gemologist explains the benefits and complexities of using a An optical spectrometer using a diffraction grating. Looking in the viewfinder is the spectrum with an overlaid frequency scale. All the tips and techniques you need to be competent identifying the vast majority of In this week's Unboxing episode, we look at another fascinating
![How do you KNOW what a gem is? [Refractometer Tutorial]](https://i.ytimg.com/vi/egpxFVwtNRo/mqdefault.jpg)
