(Closed) Flouresence in a stone, milky or whiter?

posted 6 years ago in Rings
  • poll:

    Medium-strong flouresence makes a diamond milky

    Medium-strong flouresence makes a diamond whiter

  • Post # 2
    Member
    1629 posts
    Bumble bee

    Can’t really answer the poll question because … sometimes blue fluor makes a diamond milky … and sometimes it makes a diamond whiter … and sometimes it does neither. 

    The milky/hazy effect can be found with mbf, but is much more likely to be seen with sbf or vsbf. And the milky/hazy effect is more likely to happen with a whiter diamond, one in the D/E/F range. As far as the warmer diamonds go — H/I/J/K and on down — blue flurorescence can make them appear whiter — blue is complementary to yellow, so it kind of cancels the tint out. This is why the whiter diamonds are discounted when there is fluor there, and a premium is sometimes there when fluor is present in a warmer colored stone. Of course there are plenty of diamonds that you would never know fluoresce unless you had them under a black light. 

    My diamond is an E color, with mbf, and it has no effect on the stone whatsoever, aside from a slight blue shine in strong sunlight — a shine that you would never notice as blue unless you were specifically looking for it. 

    I think people should look for a diamond with fluoresence — if you buy a warmer stone it’s great because it can make it look whiter, and if you find a whiter stone it’s great (assuming no hazy/milky effect) because you’ve got a discount. 

    • This reply was modified 5 years, 9 months ago by alamana.
    Post # 4
    Member
    457 posts
    Helper bee

    I have an old European cut G color family diamond with very strong fluorescence. We got it appraised for insurance and the fluorescence was off the charts. It’s never looked milky to me, but it does tend to look bluer under some lights and extremely white under others. It doesn’t bother me at all, actually adds to the charm of the diamond I think. Whenever I take it to my jeweler for the clean and check they always comment on how white it is. I’ll add a picture for you, its not the best but it’s the only one I have on my phone. I was wearing a bright pink tshirt so that’s why there’s a little pink in there.

    Post # 8
    Member
    1629 posts
    Bumble bee

    How to handle this differs a bit if you are looking in person vs online. If looking in person, you would always want fluor because it will help any H’s and I’s you look at and it will mean a whiter diamond costs less — and you are there in person so if the diamond is milky/hazy you will see it. The problem comes in when you are looking for a diamond online — you won’t necessarily be able to tell from the picture (and in my opinion you should only buy from online vendors with pictures and videos) if the stone’s fluor results in the stone being milky/hazy. So if you are looking online, you want to ask the vendor to check to see if any fluoresence has a negative effect on the stone before you buy it.

    I think the easy thing to do if buying online (I looked at Enchanted Diamonds and James Allen when we got mine) is to seek out blue fluor with the H and I stones, and make sure to ask if they can tell you if the fluor causes any issues. With G stones, you dont necessarily need it to counteract tint, but it can drive down price, which is also a great thing — just remember, again, to ask them to make sure the fluor has no detrimental effect on the diamond’s performance. Again, if buying in person, this isn’t really an issue because if fluor causes the diamond to look milky or hazy, you’ll see it because you are right there looking at it. 

    Hopes this helps. 

    Post # 9
    Member
    881 posts
    Busy bee

    For what it’s worth my stone is medium fluorescence cushion H color and it looks pretty white?  To me at least 🙃

    Post # 10
    Member
    3058 posts
    Sugar bee

    View original reply
    babybearinhipss:  I think it depends on the diamond, more of a case by case thing. I would definitely want to see the diamond in person before committing! Mine is an H with medium fluorescence, and I think for the most part it makes it look whiter.  I’ll share a pic with the blue color showing, and the other one to show that I think the ring is still clear despite fluorescence!

    Post # 11
    Member
    1629 posts
    Bumble bee

    http://www.goodoldgold.org/4Cs/Color/Fluorescence

     

    I like this article on fluorescence because it has a chart at the bottom that details how much of a discount/premium one will get/pay when fluoresence is present. For example, very strong fluorescence in a D/VVS stone will result in a 10-15% discount, whereas very strong fluor in a J stone might mean the stone costs 3% more. 

    Post # 12
    Member
    1629 posts
    Bumble bee

    And here’s my E/VVS2/medium blue fluor. 

    The topic ‘Flouresence in a stone, milky or whiter?’ is closed to new replies.

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