Does natural ruby glow under UV light? Fluorescence in rubies in ultraviolet light 

Natural Rubies in short-wave ultraviolet light. Real natural rubies as examples in SW UV light and how much they glow can be seen in the video.
The stronger the glow, the more glowing red it will show in natural sunlight (as the sunlight also has UV light along with visible light). This is why, Burmese rubies are the most expensive rubies as they always (mostly) have a strong glow and it enhances the red color.
Warning: This is not a test to see if the ruby is natural or synthetic or an imitation! - as synthetic rubies also glow under UV light. Please do not do the UV check to see if the ruby is natural or not.
#ruby #fluorescence #vividred #uvglow #fluorescent #uv #uvlight #red #burmaruby #burma #mozambique #pigeonblood #pigeonbloodruby
0:00 Start
0:04 Introduction to ruby fluorescence
0:31 Burma ruby fluorescence examples
1:21 Mozambique ruby fluorescence examples
2:12 Thailand ruby fluorescence example
2:38 Comparison between heated and unheated Mozambique rubies fluorescence
2:53 Comparison between Burma and Mozambique rubies fluorescence
3:08 Pink sapphire fluorescence example
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