Different Types of Diamond Fluorescence Colors
Diamonds fluoresce in every color of the rainbow. This effect in itself can make a diamond’s characteristic truly special and appealing in the eyes of collectors and regular consumers as well.
Since the strength of fluorescence can change the overall appearance of a stone, GIA has included the fluorescence aspect in a grading report. There are basically 5 different levels to differentiate diamonds with various degrees of this phenomenon. It can range from “none”, “faint”, “medium”, “strong” to “very strong”.
Did you know that the fluorescence entry on a grading report is a description and not a grade? In order to determine the degree of fluorescence, the gemologist subjects the diamond to longwave UV radiation.
Diamonds that don’t glow will be classified as “None”. If the stone does, the gemologist will then proceed to describe the phenomenon.
Here’s a GIA graded 0.29 fancy intense green yellow oval shaped diamond (report number: 51111269490). It glows in a delightful strong green fluorescence under UV lightings.
Photography Credits: Tanojewelry
Diamonds Fluoresce In All Types of Colors
And in the example here is an array of stones in a black box. The diamond on the far left is used as a control group diamond. It doesn’t have fluorescent properties and stays dark in black lighting.
On the far right, the diamond shows a ghostly white colored glow in UV radiation. To its left, we have a strong yellow fluorescence that helps to complement the default yellow color of the diamond.
What about orange colored fluorescence? Have you seen these types of fluorescence before? The 3rd and 4th diamonds from the left glowing in orange and pink are enough to make a grown man cry. Well, at least for a diamond collector.
Having seen these examples, which of them is your favorite one and why? Feel free to leave a comment as we would definitely like to hear our reader’s thoughts on these. Next up, did you know that diamonds can fluoresce in multi-colors too?
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10 Comments
Wow… my favorite one would be the orange glow. It’s so epic! For some reason, I didn’t like the white one as much.
I have a fancy yellow diamond that had orange florescence. Is this unusual?
the pink fluorescence is very nice. I have the same diamond purple pink 4.47ct with intense pink fluorescence.
I just got a little blacklight and happened to be playing around with it…. When I ran it over my wedding band, there was a bright orange(almost as bright as the picture) and 2 blue-green stones…. Now I wish they all glowed!!!
do yellow diamonds fluoresce pink?
Awesome,
I just tested UV on my diamond (jewelry) and found two very strong orange ones and in my antique ring a very strong green one! Great to see this! Too bad i can’t post a photo 🙂
Why would the Orange fluorescence be enough to make a diamond collector cry if their diamond eliminated this orange color. Seems like a bad thing.
My diamond glows orange under the blacklight. Is that a good thing?
I really like the orange, it’s beautiful being that color. I also think the green is a very interesting color as well. The yellow is an interesting color as well as the lighter blue color. I think they are all an amazing colors of fluorescence, I do think them in the order I’d just mentioned. I’ve been interested in rough diamonds for some years now, the rough diamonds are just so beautiful to stare at with a loupe. Thank you for sharing these amazing unique colors :). Also, thank you for letting me express my thoughts about these diamonds.
I have a green diamond ring that i bought as a peridot ring on ebay. I actually bought it because i didnt think it was a peridot. Imagine my surprise when i put it under a black light and it glowed green, like uranium glass. I took it straight to jeweler because doing research i could find no green gems that flourece. Not sure if it’s naturally colored, need to send it to gia still.