Blue Fluorescence in Diamonds - Brian Gavin Diamond Education 

Many, many gem stones have fluorescence. Especially rubys, emeralds and sapphires.

Thanks Jonas for the kind words - so glad you enjoyed!

It has much lower resale value

@@aayushmehta4305 most people are not concerned with resale, if you like it great, I think its desirable. On the market in the past you would pay a premium markets have changed, I dont base my preference on the whims of the market.

diamond grading lights dont have enough uv to cause that much color difference when the diamond is graded faced down , some say it can bump up the grade one grade though. Ive seen M colors with strong and graded it m but when you take it outside it looks FG Color

You are very welcome , and glad you could learn something

yea but diamond color is also caused by additional elements, so you should only get D color as its pure and Type 2 A . Most peopel cant afford that so thats why floro is a good thing

@@hamishjames2341 so what I am hearing is that most can’t afford a pure diamond so make do with a stone that is not 100% a diamond since it contains other elements other than carbon and because this comes from the ground everyone is ok with it. Yet people insist that a pure carbon crystal that is made from carbon in a lab is worth less (some urge worthless) than the fractional diamond that comes from the earth? That is some weird thinking!

@@msk3905 we are talking about parts per million of nitrogen atoms in the carbon lattice, its naturally and randomly occurring just like the florescence. That’s what makes each diamond unique and have its own natural fingerprint. Is anything pure ? Why do you need a 100% pure carbon diamond, it doesn’t exist even flawless diamonds have inclusions they are just smaller than 60x magnification.

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It's probably lab grown.

Medium blue was demonstrated on the video comparing diamond at the end.