Strong fluorescence: Yay or Nay

posted 3 years ago in Rings
Post # 3
Member
6407 posts
Bee Keeper

I would not consider it.

Anyone that owns a fluorescent diamond will certainly yelp at me for saying so, but I find them milky… the more fluorscence, the fuzzier. Yes, I can see it. No, it’s not just the “overblues,” the “overblues” are just like…wow, that’s fuzzy. It doesn’t go from crisp as an iceberg straight to superfuzz, there is a gradient. And maybe some people really can’t see it, fine. But I can see it and I don’t like it.

The stronger the fluorescence or the diamond, and the stronger the UV component of the light one is viewing said diamond in (the majority of our normal indoor and outdoor lighting conditions has some, but a very bright sunny day is something else), the more there will be a fuzziness, and in strong cases even a blue glow.

Post # 4
Member
3617 posts
Sugar bee
  • Wedding: February 2009

Fluorescence is not an issue in 99.8% of diamonds.  In a very small percentage of diamonds it will make the diamond look milky in UV lighting.  I doubt that would be the case here, but it is easy to check.  🙂  If you love the diamond, I would not let fluorescence hold you back.  🙂

Post # 5
Member
3617 posts
Sugar bee
  • Wedding: February 2009

There are lots of experts on Pricescope that ease your mind with this.  🙂

Post # 8
Member
6407 posts
Bee Keeper

@jcent:  the guy Brian who specializes in selling fluorescent diamonds would jump at the chance, I imagine.

Post # 9
Member
3617 posts
Sugar bee
  • Wedding: February 2009

@Heidibrooke:  that link is to a different stone

Post # 10
Member
3007 posts
Sugar bee
  • Wedding: May 2013

@jcent:  +1

I have a very strong blue and love it! No blurry look.

UV light when getting nails done

Sunlight (tends to only show at certain angles)

Normal conditions

Post # 12
Member
1599 posts
Bumble bee
  • Wedding: October 2013

@Heidibrooke:  I would be more concerned about the location of the inclusions than the flourescence- I don’t think I would not purchase that specific stone without seeing those inclusions in person.

Post # 14
Member
1269 posts
Bumble bee
  • Wedding: February 2011

My diamond has medium blue fluorescence and I love it – there’s no “fuzziness” or “blurry/milky” effect. Obviously there are people who are vocally disgusted by and look down upon fluorescent diamonds but to me, it’s a positive feature. 

IMO, that stone would at least be worth taking a look at if all the other factors (price, cut, etc.).

Post # 15
Member
135 posts
Blushing bee

Normally I would say it depends on the diamond’s color, but I see the stone you’re considering is a D.  Strong fluorescence in that white of a stone can make it look milky.  I’d advise you to skip the stone if there was no way for you to look at it in person and return it if you didn’t like it.

I personally thought fluorescence was cool (yay glow in the dark things!) until I saw stones that had them in person.  They’re still beautiful stones, but like cut, color, etcetera it depends on your individual taste.

Post # 16
Member
164 posts
Blushing bee

I would trust the GIA study that says only 0.2% are affected, they are one of the most reputable labs out there afterall.

What impact does fluorescence have on the appearance of a diamond?

GIA studies show that for the overwhelming majority of diamonds, the strength of fluorescence has no widely noticeable effect on appearance. In the GIA Fluorescence Study, it was found that the average person could not make a distinction between a diamond with fluorescence and a diamond without.

In many instances, observers prefer the appearance of diamonds that have medium to strong fluorescence. In rare cases, some diamonds with extremely strong fluorescence may appear hazy or oily; fewer than 0.2% of the fluorescent diamonds submitted to GIA exhibit this effect.

Unfortunately, some jewelers have been saying otherwise, and I can imagine consumers thinking ‘if it lowers the price, it must be a bad thing’, which is simply not true 99.8% of the time. I think it’s a personal decision, some love it (and specifically seek it), and some hate it.

For that specific diamond, you can ask JA gemologist to take a look at it, and also to get an ASET image (something that’s always highly recommended anyways). They’ll tell you whether it’s milky or not. You’re allowed to pick 3 stones, and in addition to ASET imaging it, they’ll explain which one they liked the best.

Here’s a video comparing a strong blue fluorescence stone and one that isn’t (make sure to watch in HD):
http://www.youtube.com/watch?v=TVhkQ-tKVG8 

And here’s one showing a very strong blue fluorescence stone in daylight. It’s the lighting that will show fluorescence the most in day to day life… because how many times are you going to be under a black light in real life?)
http://www.youtube.com/watch?v=HLCfzDSsrp4 

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